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For the circuit shown in figure below the current must not exceed

Option: 1

1 mA


Option: 2

2 mA


Option: 3

5 mA


Option: 4

10 mA


Answers (1)

best_answer

For 250\, \mathrm{k} \Omega,(1 / 4) \mathrm{W} resistor can take current \mathrm{I}, given by

\mathrm{I}^2=\frac{1}{2 \times 250 \times 1000}=10^{-3}=1 \mathrm{~mA}

\mathrm{For\, 10\, \mathrm{k} \Omega, (1/4) W } resistor can take current \mathrm{{I}' }
\mathrm{ \mathrm{I}^{\prime 2}=\frac{1}{4 \times 10 \times 1000} \quad \text { or } \mathrm{I}^{\prime}=0.005 }
\mathrm{ =5 \mathrm{~mA}}


\mathrm{For\, 10\, \mathrm{k} \Omega, 1 \mathrm{W}}resistor can take \mathrm{{I}''}
\mathrm{\text { I"}^{2} =\frac{1}{10 \times 1000}=10 \mathrm{~mA}}

Hence in the circuit, the current should be smaller than the lowest current of 1 mA
\therefore The current should not exceed 1 mA

Posted by

Divya Prakash Singh

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