# Electricity Class 10 MCQ Online Test

## Electricity Class 10 MCQ Online Test

To get 2 Ω resistance using only 6 Ω resistors, the number of them required is

Two devices are connected between two points say A and B in parallel. The physical quantity that will remain the same between the two points is

The least resistance obtained by using 2 Ω, 4 Ω, 1 Ω and 100 Ω is

Two resistors are connected in series gives an equivalent resistance of 10 Ω. When connected in parallel, gives 2.4 Ω. Then the individual resistance are

If R1 and R2 be the resistance of the filament of 40 W and 60 W respectively operating 220 V, then

Electricity MCQ Class 10 Question 14. The resistance of hot filament of the bulb is about 10 times the cold resistance. What will be the resistance of 100 W-220 V lamp, when not in use?

A fuse wire repeatedly gets burnt when used with a good heater. It is advised to use a fuse wire of

A cooler of 1500 W, 200 volt and a fan of 500 W, 200 volt are to be used from a household supply. The rating of fuse to be used is

What is the maximum resistance which can be made using five resistors each of 1/5 W?

A cylindrical conductor of length l and uniform area of cross-section A has resistance R. Another conductor of length 2l and resistance R of the same material has area of cross-section

If the current I through a resistor is increased by 100 % (assume that temperature remains unchanged), the increase in power dissipated will be

The resistivity does not change if

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

Electric potential is a:

Electricity Question 29. 1 mV is equal to:

Coulomb is the SI unit of:

When electric current is passed, electrons move from:

The heating element of an electric iron is made up of:

The electrical resistance of insulators is

Electrical resistivity of any given metallic wire depends upon