The relation between current in a conductor and time is shown in the figure.
(ii) Write the expression of current in terms of time.
[1 Mark]
A
i=i0tt0
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B
i=i0(1+tt0)
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C
i=i0(tt0−1)
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D
i=i0(1−tt0)
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Solution
The correct option is Di=i0(1−tt0) The curve is a straight line having intercepts i0 on i−axis and t0 on t−axis.
Te equation of straight line in intercept form is tt0+ii0=1 ii0=1−tt0 i=i0(1−tt0)
So option (d) is correct.