In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
Tanish has(A)/changed a lot(B)/since then.(C)/No error(D)
A current I flows through a resistor. A source maintains a potential difference of V across the resistor. The energy supplied by the source in time t is