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CBSE Class 10 Answered

Power of Electric Current. The power P expended by heat in an electric circuit of fixed resistance varies directly as the square of the current C in the circuit. A circuit expends 180 watts when a current of 6 amperes is flowing. What is the amount of heat expended when the current is 10 amperes?
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Asked by suvethaaanbarasu | 06 May, 2021, 11:12: AM
answered-by-expert Expert Answer
Given: f(x) = x + 1 and g(x) = root x
gof open parentheses straight x close parentheses equals straight g open parentheses straight f open parentheses straight x close parentheses close parentheses equals straight g open parentheses straight x plus 1 close parentheses equals square root of straight x plus 1 end root gof open parentheses straight x close parentheses space is space defined space only space if space straight x plus 1 greater or equal than 0 straight i. straight e. space straight x space greater or equal than space minus 1 Therefore comma space domain space of space gof space is space left square bracket negative 1 comma space infinity right parenthesis.
Answered by Renu Varma | 09 May, 2021, 09:10: PM

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