Question

a bulb is connected to a cell and the potential difference across the terminals of the bulb is 24 v if 3 a of current flows through the bulb then the resistance of its filament is ________ ohm​

Answer 1

Answer:

From Ohm's Law we know that-

V=IR

⟹R=

I

V

=

3

24

⟹R=8Ω

Answer 2

Answer:

potential diff ( v ) = 24v

current ( I ) = 3a

resistance ( r ) = ?

According to potential diff formula

V = IR

V/ I = R

24/3 = R

8 ohm = R

Resistance = 8 ohm