Electric Switch

Q. An electric switch allows the flow of electricity when it is in ____ state.

1. ON
2. OFF
3. closed
4. open

Q. Which of the following is used to complete or break the path of electricity flow in an electric circuit?

1. Cell
2. Switch
3. Terminal
4. Bulb

Q. A circuit is connected with a cell, a bulb, and a switch, but the bulb is not glowing. Write some possible reasons for this.

Q. Assertion(A): Electric bulb glows when the switch is turned ON in an electric circuit.
Reason(R): Electric switch acts like a conductor in an electric circuit when it is in the ON position.

1. Both A and R are true, but R is not the correct explanation of A.
2. Both A and R are true and R is the correct explanation of A.
3. A is false, but R is true.
4. A is true, but R is false.

Q. At home you must have seen switch boards. When you press a button on the switch board, you see that the bulb, fan or fridge gets powered. Through that button, the circuit is attached that helps in switching them on and off. This component used for making and breaking a circuit is known as ________.

1. Battery

2. Plug

3. Wire

4. Switch

Q. Avinash is running short of connecting wires. To complete an electric circuit, he may use a:

1. Rubber pipe
2. Glass bangle
3. Steel spoon
4. Thick thread

Q.

Why should switches always be connected in a live wire?

Q.

What type of switch allows you to reset the circuit?Is the answer an MCB?

Q. A switch is a simple device that is used ___.

1. only to break the circuit
2. only to complete the circuit
3. either to complete or break the circuit
4. increase the resistance of the circuit

Q.

Without a switch you can't make a circuit that can be opened and closed as you wish. (Unless you use your hands to join and 'un'join the wires, DO NOT do that!) True or False?

1. True

2. False

Q. Avinash is running short of connecting wires. To complete an electric circuit, he may use a:

1. Glass bangle
2. Thick thread
3. Rubber pipe
4. Steel spoon

Q. The process of transferring charge from a charged body to the Earth is called:

1. Charging by conduction
2. Earthing
3. Charging by induction
4. Charging by rubbing

Q. Using the "conduction tester" on an object it is found that the bulb begins to glow. Is that object a conductor or an insulator? Explain.

Q. What is the function of the switch in an electric circuit?

Q.

A switch is connected to the

1. Live wire

2. Neutral wire

3. Earth wire

4. None of these