Question

(1) how much current wiil an electric bulb draw from a 220v source. if the resistance of the bulb filaments is 1200ohm.
(2) how much current will an electric heater coil draw from a 220v source. if the resistance of the heater coil is 100ohm ?​

Answer 1

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Answer 2

Given =

R = 1200 ohm

V = 220v

a) v = IR

→ I = V/R

→ I = 220/1200

→ I = 11/60 A

B) R = 100 ohm

V = 220v

I = V/R

→ 220/100

I = 2.2 A