EASY
10th CBSE
IMPORTANT
Earn 100

Which has less electrical resistance: a thin wire or a thick wire (of the same length and same material)?

Important Questions on Electricity

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Very Short Answer Type Questions>Q 8
Keeping the potential difference constant, the resistance of a circuit is halved. By how much does the current change?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Very Short Answer Type Questions>Q 9
A potential difference of 20 volts is applied across the ends of a resistance of 5 ohms. What current will flow in the resistance?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Very Short Answer Type Questions>Q 10
A resistance of 20 ohms has a current of 2 amperes flowing in it. What potential difference is there between its ends?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Very Short Answer Type Questions>Q 11
A current of 5 amperes flows through a wire whose ends are at a potential difference of 3 volts. Calculate the resistance of the wire.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Very Short Answer Type Questions>Q 12
Ohm's law states a relation between potential difference and _____ (Electric power/ Electric current/ Electric energy).
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Short Answer Type Questions>Q 13
Distinguish between good conductors, resistors and insulators. Name two good conductors, two resistors and two insulators.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Short Answer Type Questions>Q 14
Classify the following into good conductors, resistors and insulators:
Rubber, Mercury, Nichrome, Polythene, Aluminium, Wood, Manganin, Bakelite, Iron, Paper, Thermocol, Metal coin
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 1 - Electricity>Short Answer Type Questions>Q 15
What is Ohm’s law? Explain how it is used to define the unit of resistance.