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Chapter 4: Effects of electric current
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentChoose the correct option.
Choose the correct option.
The unit of electrical power is _______.
volt
watt
joule
ampere
The ‘live’ and the ‘neutral’ wires have potential difference of _______.
110 V
202 V
201 V
220 V
In an electric bulb, coil of _______ metal is used.
copper
tungsten
aluminium
iron
The electricity bill specifies the usage in _______.
kilowatt
joule
volt
unit
The frequency of AC is _______.
20 Hz
50 Hz
25 Hz
75 Hz
These days when current in the circuit suddenly increases _______ switches are used.
MCA
MCC
MCD
MCB
A coil of an alloy _______ is used in electric heater cooker as a resistor.
Stainless steel
Nichrome
Copper
Bronze
The right-hand thumb rule is also called _______ rule.
Newton’s law of motion
Newland’s law of Octave
Mendeleev’s periodic law
Maxwell’s cork- screw
_______ is used for electrical measurements.
Thermometer
Galvanometer
Voltmeter
Electric meter
Which of the following scientist invented the rule of electromagnetic induction?
Newton
Kepler
Mendeleev
Michael Faraday
Which of the following substance contracts on heating?
Lukewarm water
Ice
Iron
Mercury
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentFind the correlation.
Find the correlation.
Electric motor : converts electrical energy into mechanical energy : : Electric generator : _______
Fleming's left hand rule : electric current : : Fleming's right hand rule : _______
Alternating current : oscillatory :: Direct current : _______
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentFind odd one out.
Tell the odd one out. Give proper explanation.
Loud speaker, microphone, electric motor, magnet.
Loud speaker
microphone
electric motor
magnet
Tell the odd one out. Give proper explanation.
Fuse wire
bad conductor
rubber gloves
generator
Find the odd one out and give its explanation.
Tungsten
Nichrome
Aluminium
Iron
Find the odd one out and give its explanation.
Boiler
Electric stove
Electric bulb
Electric bell
Find the odd one out and give its explanation.
Temperature
Conduction
Convection
Radiation
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentAnswer in one sentence.
Answer the following question in one sentence.
What is the heating effect of electric current?
Which metal is used to make the filament of an electric bulb?
What is a short circuit?
What is the potential difference?
How much is the potential difference between live and neutral wires?
What is overloading?
What is used to turn off the sudden increase in current in the electrical circuit of the house nowadays?
Write two devices based on the heating effect of electric current.
Write Fleming’s right hand thumb rule with the help of diagram.
Write Fleming’s left hand rule.
What is a solenoid?
Write the two names in the following diagram.
Right hand thumb rule.
Write the two names in the following diagram.
Fleming’s right hand rule.
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentmatch the columns
Match the columns.
| Column A | Column B |
| 1) Direct current | a) Oscillatory |
| 2) Alternating current | b) Non oscillatory |
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentRight or Wrong sentence
The alternating current is an oscillatory current.
Right
Wrong
Live wire and neutral wires have a 220 V potential difference.
Right
Wrong
Increasing the current passing through the wire decreases the magnetic field intensity.
Right
Wrong
Galvanometers are used for electrical measurements.
Right
Wrong
The frequency of the alternating current is 50 Hz.
Right
Wrong
Electric motors are devices that convert electrical energy into mechanical energy.
Right
Wrong
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentWrite scientific reasons
Give Scientific reason.
In practice, the unit kWh is used for the measurement of electrical energy, rather than joule.
Give Scientific reason.
Tungsten metal is used to make a solenoid type coil in an electric bulb.
Give Scientific reason.
For electric power transmission, copper or aluminium wire is used.
Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.
Write scientific reason.
A coil made up of alloy Nichrome is used in the electric heater cooker as a resistor.
Write scientific reason.
It is beneficial to carry electrical energy in AC form as it is carried over long distances.
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentSolve the following Questions
Distinguish between Direct current and alternating current.
How does the short circuit form? What is its effect?
Write Fleming’s left hand rule.
What is an electric motor?
In which electric motor appliances do we use it?
Name any two appliances which works on the phenomenon of magnetic effect of electric current.
Name any two appliances which works on the phenomenon of heating effect of electric current.
Write Fleming’s right hand thumb rule with the help of diagram.
Explain the importance/uses of fuse wire.
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentAnswer the Following
Write two devices based on the heating effect of electric current.
Name any two appliances which works on the phenomenon of magnetic effect of electric current.
Write Fleming’s left hand rule.
Write Fleming’s right hand thumb rule with the help of diagram.
An electric iron of 1100 W is operated for 2 hrs daily. What will be the electrical consumption expenses for that in the month of April? (The electric company charges Rs 5 per unit of energy).
What is overloading?
When does overloading occur?
What does overloading cause?
How can overloading be avoided?
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric motor
Write a short note on the galvanometer.
What is the use of earthing wire?
Explain the application of heating effect of electric current in an electric bulb with a diagram.
Draw a neat labelled diagram to show the magnetic effect of electric current.
Name the following diagram and explain the concept behind them.
Name the following diagram and explain the concept behind them.
Identify the given figure, write the labels of it.
Who will spend more electrical energy? 500 W TV Set in 30 mins, or 600 W heater in 20 mins?
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 Chapter 4 Effects of electric currentAnswer the following questions
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric motor
Explain the construction and working of an electric generator (AC) with the help of a neat diagram.
Explain the magnetic field created around a straight current carrying conductor with the help of a diagram.
Observe the figure and write the answers to the questions asked.
- The construction shown in the figure is of which device?
- Explain the principle on which this device works.
- Write any three uses of this device.
Observe the figure and write the answers to the questions asked.
- The construction shown in the figure is of which device?
- Explain the principle on which this device works.
- Write any three uses of this device.
Chapter 4: Effects of electric current
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 chapter 4 - Effects of electric current
SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 chapter 4 (Effects of electric current) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 chapter 4 Effects of electric current are Electric Circuit, Heating Effect of Electric Current, Magnetic Effect of Electric Current, Magnetic Field Due to Current in a Loop (Or Circular Coil), Magnetic Field Due to a Current Carving Cylindrical Coil (or Solenoid), Force on a Current Carrying Conductor in a Magnetic Field, Electric Motor, Electromagnetic Induction, Galvanometer, Direct Current Motor, Ohm's Law, Joule’s Law of Heating, Electrical Power, Electric Fuse, Rule to Find the Direction of Magnetic Field, Faraday's Laws of Electromagnetic Induction, Types of current: Alternating Current (A.C.) and Direct Current (D.C.), Electric Generator, Alternating Current (A.C.) Generator.
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