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Ohm's Law - Technical MCQs

Q1:

The number of joules used in 1 second is always equal to the number of _______.

A siemens

B coulombs

C amperes

D watts

ANS:D - watts

The power P in watts (W) is equal to the energy E in joules (J), divided by the time period t in seconds (s):

P(W) = E(J)/t(s).