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 ______$\Omega$

• A. 8
• B. 72
• C. 24
• D. 3

Answer 1

The correct option is A 8

From Ohm's Law we know that-

$V=IR$

$⟹R=\frac{V}{I}=\frac{24}{3}$

$⟹R=8\Omega$

Answer-(A)