According to the Ohm's law, at constant temperature, the current flowing in a conductor is directly proportional to the electric potential applied across the terminals of the conductor. Mathematically it can be given as I ∝ V or V ∝ I So, o r V = R I Where, R a constant of proportionality which is called resistance.

Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 14

EASY

NEET

IMPORTANT

Earn 100

Kirchhoff's junction rule is based on conservation of .

50% studentsanswered this correctly

Important Questions on Current Electricity

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 15

Meter bridge is based on _____ .

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 1

50 cm

of potentiometer wire from the left most point balances the e.m.f. of cell

A

and

75 cm

of potentiometer wire from the same point balance the e.m.f. of cell

B

. The ratio of e.m.f. of cell

A

and

B

will be

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 2

Meter bridge is used to measure

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 3

If radius of a potentiometer wire is doubled keeping its length and potential difference across it constant, then the value of its potential gradient will

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 5

Meter bridge is application of

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 6

The SI unit of resistivity is _____.

EASY

NEET