Science : Ch 12 – Electricity

This test is designed based on NCERT Syllabus for Class 10 Topics : Electricity

Each time random 15 questions will be displaced
So retake the quiz till you have mastered all the questions

1 / 15

The values of mA and µA are:

10^-6 and 10^-9 A respectively

10^-3 and 10^-6 A respectively

10^-3 and 10^-9 A respectively

10^-6 and 10^-3 A respectively

2 / 15

The instrument used for measuring electric current is:

galvanometer

ammeter

voltmeter

potentiometer

3 / 15

A boy records that 4000 joule of work is required to transfer 10 coulomb of charge between two points of a resistor of 50 Ω. The current passing through it is:

2 A

4 A

8 A

16 A

4 / 15

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

2

3

4

6

5 / 15

Insulators consists of:

No resistance

High resistance

Small resistance

Variable resistance

6 / 15

When electric current is passed, electrons move from:

High potential to low potential

Do not move

Out of the conductor

Low potential to high potential

7 / 15

Ohm’s law express that:

Resistance increases as current increases

Resistance decreases as current increases

Resistance increases as voltage increases

Current increases as voltage increases

8 / 15

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

10 Ohm

1 Ohm

100 Ohm

1/5 Ohm

9 / 15

The electrical resistance of a conductor having cross-sectional area 1 m² and length 1m

electrical inductivity

electrical resistivity

none

10 / 15

The commercial unit of electrical energy

kilo hour

watt hour

kilowatt hour

none

11 / 15

The rate at which electrical work is done or the rate at which electrical energy is consumed

Electrical power

electrical inductivity

electrical resistivity

none

12 / 15

The equivalent resistance of a series combination of two resistances is X Ohm. If the resistance are of 10 Ohm and 40 Ohm respectively, the value of X will be:

50 ohm

20 ohm

10 ohm

40 ohm

13 / 15

The unit of electric power may also be expressed as

volt-ampere

kilowatt-hour

watt-second

joule second

14 / 15

The maximum resistance which can be made using four resistors each of 2 Ohm

6 ohm

8 Ohm

2 ohm

10 ohm

15 / 15

The instrument used for measuring electric current is

Ammeter

voltmeter

galvanometer

potentiometer

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Science : Ch 12 – Electricity

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