Class 9 | Maharashtra Board | Quiz + Flash Cards

Class 9 | Current Electricity

8 March 2024

Flash Card

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

1/30

Ohm's law relates which of the following quantities?

2/30

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

3/30

Which of the following materials has the highest resistance?

4/30

The device used to measure electric current is called:

5/30

Which of the following is the odd one out?

6/30

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

7/30

Which of the following is the odd one out?

8/30

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

9/30

The resistance of a conductor depends on:

10/30

Following is true for identical bulbs connected in parallel.

11/30

Which of the following is the odd one out?

12/30

What is the SI unit of electric current?

13/30

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

14/30

Which of the following is the odd one out?

15/30

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

16/30

The total resistance in a series circuit:

17/30

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

18/30

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

19/30

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

20/30

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

21/30

Which of the following is the odd one out?

22/30

An ammeter is connected in a circuit in:

23/30

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

24/30

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

25/30

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.

26/30

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?

27/30

Which of the following statements is true about a voltmeter?

28/30

The SI unit of resistance is

29/30

Which of the following materials has the least resistance?

30/30

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Class 9 | Current Electricity

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1 / 30

Which of the following materials has the highest resistance?

Aluminium

Copper

Silver

Nichrome

2 / 30

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

an ammeter in parallel

a voltmeter in series

an ammeter in series

a voltmeter in parallel

3 / 30

Which of the following is the odd one out?

Ammeter

Resistor

Voltmeter

Galvanometer

4 / 30

The device used to measure electric current is called:

Ammeter

Galvanometer

Ohmmeter

Voltmeter

5 / 30

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

The current in that branch decreases.

The current in that branch increases.

The total resistance of the circuit decreases.

The total resistance of the circuit increases.

6 / 30

Which of the following is the odd one out?

Kirchhoff's laws

Newton's law

Ohm's law

Joule's law

7 / 30

1 mA = ……………A

10^3

10^6

10^-3

10^-6

8 / 30

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

36 A

0.25 A

15 A

4 A

9 / 30

1 kilowatt hr = …………joules.

3.6 × 105

30.6 × 106

3.6 × 106

4.6 × 106

10 / 30

An ammeter is connected in a circuit in:

Parallel

Series

None of the above

Series-parallel combination

11 / 30

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

Aluminum

Copper

Glass

Silver

12 / 30

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

neutral

earth

live

fuse

13 / 30

Following is true for identical bulbs connected in parallel.

Bulbs function for longer time.

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

All bulbs glow with equal brightness.

All bulbs glow with unequal brightness.

14 / 30

Which of the following is the odd one out?

Ampere

Volt

Joule

Ohm

15 / 30

Ohm’s law relates which of the following quantities?

Power and current

Voltage and current

Voltage and resistance

Current and resistance

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.

Both (a) and (b)

Current

Resistance

Resistivity

17 / 30

Which of the following statements is true about a voltmeter?

It measures voltage.

It is always connected in series.

It is always connected in parallel.

It measures current.

18 / 30

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

series

none of these

parallel

both ways

19 / 30

Which of the following is the odd one out?

Conductor

Relay

Insulator

Semiconductor

20 / 30

The SI unit of resistance is

Ohm

none of these

Kelvin

ampere

21 / 30

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

Plastic

Glass

Rubber

Copper

22 / 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?

10 Ω

24 Ω

1.5 Ω

2 Ω

23 / 30

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

length

temperature

area of cross section

material

24 / 30

Which of the following materials has the least resistance?

Gold

Iron

Tungsten

Carbon

25 / 30

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

60 V

220 V

440 V

110 V

26 / 30

What is the SI unit of electric current?

Volt

Watt

Ampere

Ohm

27 / 30

The total resistance in a series circuit:

Becomes zero with the addition of more resistors

Remains constant with the addition of more resistors

Decreases with the addition of more resistors

Increases with the addition of more resistors

28 / 30

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

Capacitor

Transformer

Diode

Motor

29 / 30

Which of the following is the odd one out?

Series connection

Alternating current

Parallel connection

Direct current

30 / 30

The resistance of a conductor depends on:

Its cross-sectional area

Its length

Its material

All of the above

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The average score is 62%