English
Maharashtra State BoardSSC (English Medium) 10th Standard

Write scientific reason. It is beneficial to carry electrical energy in AC form as it is carried over long distances.

Advertisements
Advertisements

Question

Write scientific reason.

It is beneficial to carry electrical energy in AC form as it is carried over long distances.

Explain
Short/Brief Note
Advertisements

Solution

  1. There is minimum power loss, when electrical energy is carried over long distances in the form of AC.
  2. Hence, it is beneficial to carry electrical energy in AC form as it is carried over long distances.
shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Effects of electric current - Write scientific reasons

APPEARS IN

SCERT Maharashtra Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
Chapter 4 Effects of electric current
Write scientific reasons | Q 6

RELATED QUESTIONS

What do the following symbols mean in circuit diagrams?  


Draw circuit symbols for  

 a battery of three cells 


Draw a circuit diagram to show how 3 bulbs can be lit from a battery so that 2 bulbs are controlled by the same switch the third bulb has its own switch. 

 


Explain with the help of a labelled circuit diagram how you will find the resistance of a combination of three resistors, or resistance R1, R2 and R3, joined in parallel. Also mention how you will connect the ammeter and the voltmeter in the circuit when measuring the current in the circuit and the potential difference across one of the three resistors of the combination.


Tell the odd one out. Give proper explanation.


In an electric circuit, electron flow a from of point of ______ potential to the point of ______ potential.


In an electric circuit, a battery and a bulb have been connected and the battery consists of two cells of equal potential difference. If the bulb is not glowing, then which tests will you perform in order to find out the reason for the bulb not glowing?


Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams. 


What do you understand by the open electric circuit?


Draw a neat diagram showing a open electric circuit.


What is an artificial magnet?

In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?


Find the odd one out and give its explanation.


What is the potential difference?


Increasing the current passing through the wire decreases the magnetic field intensity.


In the given circuit diagram, which of the given switch(s) should be closed. So that only bulb A glows.


Tabulate the different components of an electric circuit and their respective symbols.


In which of the following circuits are the bulb connected in series?


Study the three electric circuits below. Each of them has a glass rod (G), a steel rod (S), and a wooden rod (W).

In which of the electric circuits would the bulb not light up.


Fuse is


The wiring in a house consists of ______ circuits.


What is the role of the earth wire in domestic circuits?


A device that is used to break an electric circuit is called ______.


Instead of metal wires, a jute string can be used to make a circuit.


Assertion: In an open circuit, the current passes from one terminal of the electric cell to another.

Reason: Generally, the metal disc of a cell acts as a positive terminal.


______ is a kind of fish which is able to produce an electric current.


In an electrical circuit three incandescent bulbs A, B and C of rating 40 W, 60 W and 100 W respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness?


In an electric circuit, the current starts from ______.


Draw the symbols of the following circuit components.

Switch in off position


Observe the circuit given:

1. Would any of the bulbs glow when the switch is in the ‘OFF’ position?

2. What will be the order in which the bulbs A, B, and C will glow when the switch is moved to the ‘ON’ position?


Will the bulb glow in the circuit shown in the following figure? Explain.


Paheli connected two bulbs to a cell as shown in the following figure.


She found that filament of bulb B is broken. Will the bulb A glow in this circuit? Give reason.


Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.


A complete circuit is left on for several minutes, causing the connecting copper wire to become hot. As the temperature of the wire increases, the electrical resistance of the wire


An electric motor rated 1100 W is connected to 220 V mains. Find: 

  1. The current drawn from the mains,
  2. Electric energy consumed if the motor is used for 5 hours daily for 6 days.
  3. Total cost of energy consumed if the rate of one unit is 5.

Assertion: People struck by lightning receive a severe electrical shock.

Reason: Lightning carries very high voltage.


Set up the circuit shown in Figure again. Move the key to ‘ON’ position and watch carefully in which direction the compass needle gets deflected. Switch ‘OFF’ the current. Now keeping rest of the circuit intact, reverse the connections at the terminal of the cell. Again switch ‘on’ the current. Note the direction in which the needle gets deflected. Think of an explanation.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×