Question

an electric bulb draws 1.2 A current at 6.0 V. Find the resistance bulb​

Answer 1

Answer:

As,

V= IR

where

v is voltage

I is current and R is resistance.

So

6 = 1.2 × R

R = 5 ohm.

Answer 2

Answer:

• Resistance of Bulb, R = 5 Ω

Explanation:

Given

• Current drawn by the bulb, I = 1.2 A
• Potential difference, V = 6.0 V

To find

• Resistance of bulb, R =?

Formula required

• Expression for ohm's Law

        V = I R

[ Where V is potential difference, I is current and R is resistance ]

• According to Ohm's law the potential difference is directly proportional to the Current and resistance of Conductor.

Calculation

Using expression for Ohm's law

→ V = I R

→ ( 6.0 ) = ( 1.2 ) · ( R )

→ R = ( 6.0 ) / ( 1.2 )

→ R = 60 / 12

→ R = 5 Ω

Therefore,

• Resistance of bulb will be 5 Ω.