Flash Card

1 kilowatt hr = ............joules.

1/30

Which of the following materials is a good conductor of electricity?

2/30

The .......... wire is either yellow or green in colour.

3/30

To increase the effective resistance in a circuit the resistors are connected in ..............

4/30

What is the SI unit of electric current?

5/30

In a parallel circuit, if one branch has a high resistance:

6/30

Which of the following materials has the highest resistance?

7/30

Which of the following is the odd one out?

8/30

1 mA = ...............A

9/30

If a P.D. of 12 V is applied across a 3  resistor then the current passing through it is ................... .

10/30

Which of the following is the odd one out?

11/30

Following is true for identical bulbs connected in parallel.

12/30

A device with a resistance of 4 Ω is connected in series with a device with a resistance of 6 Ω. What is the total resistance of the combination?

13/30

The resistance of a conductor depends on:

14/30

Which of the following is the odd one out?

15/30

The voltage difference in India between the live and neutral wires is about ............... .

16/30

P and Q are two wires of same length and different cross sectional areas and made of same material. Name the property which is same for both the wires.

17/30

An ammeter is connected in a circuit in:

18/30

Identify the odd one out: Copper, Silver, Glass, Aluminum

19/30

The device used to measure electric current is called:

20/30

The total resistance in a series circuit:

21/30

Ohm's law relates which of the following quantities?

22/30

Which of the following is the odd one out?

23/30

Which of the following devices converts electrical energy into mechanical energy?

24/30

Which of the following is the odd one out?

25/30

The SI unit of resistance is

26/30

Which of the following materials has the least resistance?

27/30

Resistivity is the specific property of a ...................

28/30

Which of the following statements is true about a voltmeter?

29/30

In order to measure the electric current flowing through a circuit, we connect ............ with the circuit.

30/30

Prev Next

Class 9 | Current Electricity

NameEmailWhatsApp Mobile No.

1 / 30

P and Q are two wires of same length and different cross sectional areas and made of same material. Name the property which is same for both the wires.

Resistance

Both (a) and (b)

Resistivity

Current

2 / 30

An ammeter is connected in a circuit in:

Parallel

Series

Series-parallel combination

None of the above

3 / 30

The resistance of a conductor depends on:

Its cross-sectional area

Its material

Its length

All of the above

4 / 30

Which of the following is the odd one out?

Newton's law

Joule's law

Kirchhoff's laws

Ohm's law

5 / 30

If a P.D. of 12 V is applied across a 3  resistor then the current passing through it is ………………. .

36 A

4 A

0.25 A

15 A

6 / 30

1 kilowatt hr = …………joules.

4.6 × 106

3.6 × 106

3.6 × 105

30.6 × 106

7 / 30

Which of the following is the odd one out?

Alternating current

Direct current

Parallel connection

Series connection

8 / 30

The SI unit of resistance is

Ohm

none of these

ampere

Kelvin

9 / 30

The device used to measure electric current is called:

Galvanometer

Voltmeter

Ammeter

Ohmmeter

10 / 30

Resistivity is the specific property of a ……………….

temperature

length

area of cross section

material

11 / 30

Which of the following materials has the highest resistance?

Silver

Nichrome

Aluminium

Copper

12 / 30

A device with a resistance of 4 Ω is connected in series with a device with a resistance of 6 Ω. What is the total resistance of the combination?

2 Ω

1.5 Ω

24 Ω

10 Ω

13 / 30

Identify the odd one out: Copper, Silver, Glass, Aluminum

Silver

Glass

Copper

Aluminum

14 / 30

Which of the following statements is true about a voltmeter?

It measures current.

It is always connected in parallel.

It measures voltage.

It is always connected in series.

15 / 30

Which of the following materials has the least resistance?

Carbon

Gold

Tungsten

Iron

16 / 30

To increase the effective resistance in a circuit the resistors are connected in …………..

parallel

series

none of these

both ways

17 / 30

Ohm’s law relates which of the following quantities?

Current and resistance

Power and current

Voltage and current

Voltage and resistance

18 / 30

Which of the following is the odd one out?

Conductor

Relay

Semiconductor

Insulator

19 / 30

Which of the following devices converts electrical energy into mechanical energy?

Capacitor

Diode

Motor

Transformer

20 / 30

Following is true for identical bulbs connected in parallel.

All bulbs glow with equal brightness.

Bulbs function for longer time.

All bulbs glow with unequal brightness.

If one bulb is non functional, all will stop working.

21 / 30

In a parallel circuit, if one branch has a high resistance:

The total resistance of the circuit decreases.

The current in that branch decreases.

The current in that branch increases.

The total resistance of the circuit increases.

22 / 30

The ………. wire is either yellow or green in colour.

earth

neutral

fuse

live

23 / 30

The voltage difference in India between the live and neutral wires is about …………… .

440 V

110 V

60 V

220 V

24 / 30

1 mA = ……………A

10^-6

10^3

10^-3

10^6

25 / 30

The total resistance in a series circuit:

Remains constant with the addition of more resistors

Becomes zero with the addition of more resistors

Increases with the addition of more resistors

Decreases with the addition of more resistors

26 / 30

Which of the following materials is a good conductor of electricity?

Plastic

Rubber

Copper

Glass

27 / 30

Which of the following is the odd one out?

Volt

Ohm

Joule

Ampere

28 / 30

What is the SI unit of electric current?

Ampere

Volt

Ohm

Watt

29 / 30

In order to measure the electric current flowing through a circuit, we connect ………… with the circuit.

an ammeter in series

a voltmeter in parallel

a voltmeter in series

an ammeter in parallel

30 / 30

Which of the following is the odd one out?

Ammeter

Galvanometer

Resistor

Voltmeter

Your score is

The average score is 67%

Class 9 | Current Electricity

Flash Card

Related Posts