Question

Calculate the potential difference required across a conductor of resistance 5 Ohm to allow a current of 1.5 A to pass through it.
(class 10 CBSE SAMPLE PAPER 2017-18 SCIENCE)

Answer 1

SOLUTION:

Given :

Resistance(R ) = 5Ω
Current (I)= 1.5 A

From Ohm's law:
Potential difference (V) = current (I) × resistance (R)

V= I×R
V= 1.5 A × 5 Ω
V= 7.5 V

Hence, the potential difference required across a conductor is 7.5 V .

HOPE THIS WILL HELP YOU….

Answer 2

resistance(R)=5 Ohm
current(I)=1.5 A
potential difference(V)= ?

So from Ohm's law
we know
V=IR
=>V= 1.5*5
=7.5 Volts