Question

Keeping the resistance constant, the potential difference applied across the ends of a component is halved.; By how much does the current change?

Answer 1

Answer:

Explanation:

Keeping the resistance constant, the potential difference applied across the ends of a component is halved.; By how much does the current change?

Answer 2

New current becomes half of the initial current.

Explanation:

• The mathematical form of Ohm's law is given by :

V = I R

I is electric current

R is Resistance

V is voltage

• According to given condition, keeping the resistance constant, the potential difference applied across the ends of a component is halved, V' = V/2

Since,

$I=\dfrac{V}{R}$

• New current is given by :

$I'=\dfrac{V'}{R}\\\\I'=\dfrac{(V/2)}{R}$

New current becomes half of the initial current.

Learn more,

Ohm's law

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