मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Match the Column ‘A’ with Column ‘B’. - Science and Technology 1

Advertisements
Advertisements

प्रश्न

Match the column ‘A’ with column ‘B’.

Column ‘A’
Column ‘B’
(1) Eka - boron
(a) Germanium
(2) Eka - Aluminium
(b) Scandium
(3) Eka - Silicon
(c) Gallium
जोड्या लावा/जोड्या जुळवा
Advertisements

उत्तर

Column ‘A’
Column ‘B’
(1) Eka - boron
(b) Scandium
(2) Eka - Aluminium
(c) Gallium
(3) Eka - Silicon
(a) Germanium
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2014-2015 (July)

APPEARS IN

संबंधित प्रश्‍न

What do the following symbols mean in circuit diagrams? 


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.


The accompanying figure shows some electrical appliances connected in a circuit in a house. Answer the following questions.

  1. By which method are the appliances connected?
  2. What must be the potential difference across individual appliances?
  3. Will the current passing through each appliance be the same? Justify your answer.
  4. Why are the domestic appliances connected in this way?
  5. If the T.V. stops working, will the other appliances also stop working? Explain your answer.

What do you understand by the closed electric circuit


What do you understand by the open electric circuit?


Draw a neat diagram showing a closed electric circuit.


What is an artificial magnet?

How is a voltmeter connected in a circuit?

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?


What is the potential difference?


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


Write scientific reason.

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


What is the use of earthing wire?


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


Higher Order Question

A student made a circuit by using an electric cell, a switch, a torch bulb (fitted in the bulb holder), and copper connecting wires. When he turned on the switch, the torch bulb did not glow at all. The student checked the circuit and found that all the wire connections were tight.

  • What could be the possible reason for the torch bulb not glowing even when the circuit appears to be complete?

Draw the circuit diagram for the following series connection


State whether true or false. If false, correct the statement.

Ammeter is connected in parallel in any electric circuit.


In a simple circuit, why does the bulb glow when you close the switch?


The wiring in a house consists of ______ circuits.


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


Explain about domestic electric circuits. (circuit diagram not required)


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.


The rate of flow of electric charges in a circuit is called ______.


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


What are the types of electric circuits?


In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be

(i) (ii) (iii) 

In an electrical circuit two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be


A child has drawn the electric circuit to study Ohm’s law as shown in Figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.


Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 Ω in series with a combination of two resistors (4 Ω each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 Ω resistor be the same as that across the parallel combination of 4 Ω resistors? Give reason.


Choose the statement which is not correct in the case of an electric fuse.


Draw the symbols of the following circuit components.

Switch in off position


In the following arrangement shown in the following figure, the bulb will not glow if the ends A and B are connected with


In which of the following circuits A, B and C given in the following figure, the cell will be used up very rapidly?


Overloading of electric circuits can lead to short-circuiting.


How is Joule's law effect useful in electric circuits where fuse is used as a safety device?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×