The first, twelveth and last term of an A.P are 4 ,-31.5 and 376.5 respectively . Determine (a) number of terms in the series
(b) the sum of all the terms (c) the 80th term
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a) Answer: The current is directly proportional to the voltage and inversely proportional to the resistance. This means that increasing the voltage b) will cause the current to increase, c) while increasing the resistance will cause the current to decrease.
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