Punjab Board Solutions for Chapter: Electric Current and its Effects, Exercise 1: Exercises

Author:Punjab Board

Punjab Board Science Solutions for Exercise - Punjab Board Solutions for Chapter: Electric Current and its Effects, Exercise 1: Exercises

Attempt the free practice questions on Chapter 14: Electric Current and its Effects, Exercise 1: Exercises with hints and solutions to strengthen your understanding. Science solutions are prepared by Experienced Embibe Experts.

Questions from Punjab Board Solutions for Chapter: Electric Current and its Effects, Exercise 1: Exercises with Hints & Solutions

EASY
7th Punjab Board
IMPORTANT

The combination of two or more cells is called a _____.

EASY
7th Punjab Board
IMPORTANT

When a current is switched ‘on’ in a room heater, it _____.
(Choose one of the following: produces heat/ produces wind).

EASY
7th Punjab Board
IMPORTANT

The safety device based on the heating effect of electric current is called a _____.

EASY
7th Punjab Board
IMPORTANT

To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell.

EASY
7th Punjab Board
IMPORTANT

When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks. 

EASY
7th Punjab Board
IMPORTANT

An electromagnet does not attract a piece of iron.

EASY
7th Punjab Board
IMPORTANT

An electric bell has an electromagnet.

EASY
7th Punjab Board
IMPORTANT

In the circuit shown below,
Question Image

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