Ohm''s Law

An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately

A 385

B 38.5

C 3.1

D 31

ANS:D - 31

As per ohms law R = V/I.
V = 110V.
I = 3.5.
R = 110/3.5 = 31.42.

ANS R = 31OHMS IS THE RIGHT ANSWER.

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