Lakhmir Singh and Manjit Kaur Solutions for Chapter: Magnetic Effect of Electric Current, Exercise 25: Multiple Choice Questions (MCQs)

The maximum number of $40 \mathrm{W}$ tube-lights connected in parallel which can safely be run from a $240 \mathrm{V}$ supply with a $5 \mathrm{A}$ fuse is:

In normal use, a current of $3.5 \mathrm{A}$ flows through a hair dryer. Choose a suitable fuse from the following:

Which one of the following statements is not true?

A car headlamp of $48 \mathrm{W}$ works on the car battery of $12 \mathrm{V}$. The correct fuse for the circuit of this car headlamp will be:

A $3$-pin mains plug is fitted to the cable for a $1 \mathrm{kW}$ electric kettle to be used on a $250 \mathrm{V}$ a.c. supply. Which of the following statement is not correct?

A TV set consumes an electric power of $230 \mathrm{watts}$ and runs on $230 \mathrm{volts}$ mains supply. The correct fuse for this TV set is:

Circuit Breaker Device which can be used in place of fuse in domestic electric wiring is called:

An MCB which cuts off the electricity supply in case of short-circuiting or overloading works on the: