Science Quiz Based on NCERT

1.The SI unit of electric charge is __________

A.volts (V)

B.ampere (A)

C.coulomb (C)

D.tesla (T)

2.By convention, the charge on a glass rod that has been rubbed with silk is called

A.Positive

B.Negative

C.either positive or negative

D.none of these

3.Two charged bodies having equal potential are connected through a conducting wire, in this case

A.current will flow

B.current will not flow

C.cannot say

D.current will flow if a resistor is also connected. 

4.The Potential Difference between two terminals can be measured by _________

A.an ammeter.

B.a voltmeter

C.an ohm-meter

D.a rheostat

5.The net charge flowing through a cross section of a conductor in unit time is known as

A.ampere

B.volt

C.resistance

D.electric potential

6.On which of the following no “plus” or “minus” sign is marked

A.a battery

B.an ammeter

C.a voltmeter

D.a resistor

7.The voltmeter is always connected in _________ across the points between which the potential difference is to be measured.

A.series

B.parallel

C.either series or parallel

D.none of these

8.Which wire is usually black in colour ?

A.Live wire

B.Neutral wire

C.Earth wire

D.None of the above

9.According to Ohm's law,

A.The resistance increases with the increases in current.

B.The resistance increases with the increases in voltage.

C.The current increases with the increases in voltage.

D.The resistance and current both increases with the increases in voltage.

10.Why are fuses usually made of tin alloy?

A.It has high melting point

B.It has low melting point

C.Because Copper has high melting point

D.Both B and C

Answers:
1.C 
2.A 
3.B
4.B
5.A
6.D
7.B
8.B
9.C 
10.D