how do you find current with only resistance? For example what are the currents of a hot plate with a resistance of 50 Ω and a microwave with a resistance of 21 Ω
sivaprasath:
We need to know the potential difference (Voltage) to find current
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IN THIS WE WILL TAKE THE COMMON P. D
THAT IS THE COMMON VOLTAGE OF 220V OF OUR HOUSE CIRCUIT
SO, AS HERE GIVEN R= 50 OHM
AND V=> 220V
SO CURRENT "I"= V/R
=> I = 220/50
=> I = 4. 4 A
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