Question

Choose The Incorrect Statements.
A) A switch is the source of electric current in a circuit.
B) A switch helps to complete or break the circuit.
C) A switch helps us to use electricity as per our requirement.
D) When the switch is open, there is an air gap between its terminals.

Answer 1

Answer:

Solution:

(b) Current always starts from positive terminal and end at negative terminal of the battery. This is conventional direction of flow of current in a circuit.

Question 2:

Choose the incorrect statement.

(a) A switch is the source of electric current in a circuit

(b) A switch helps to complete or break the circuit

(c) A switch helps us to use electricity as per our requirement

(d) When the switch is open, there is an air gap between its terminals

Solution:

(a) A switch cannot be a source of electric current in the circuit. Electric cell is a source of electricity in the circuit. Other options are the functions of a switch.Question 5(a) the bulb A will glow first (b) the bulb B will glow first

(c) the bulb C will glow first (d) all bulbs will glow together

Solution:

(d) All the bulbs will glow together because current will reach simultaneously to all the bulbs, when the switch is moved to ON position.

Answer 2

Answer:

i think option A is the right answer