Question

What is the resistance of a lamp when 25 amps uses 5 volts

Answer 1

Resistance of lamp is 0.2 ohms

Explanation:

Given:

Voltage= 5 volts

Current =25 amps

Now using Ohms law we get

`V=IR`

Substituting values of V and I we get

`25=5R`

`\therefore R=(5)/(25)`

`\therefore R=0.2 ohms`