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Q1. | In the circuit of figure the current through 3 Ω resistance at t = 0^{+} |

A. | 0.166666666666667 [Wrong Answer] |

B. | 2.5 A [Wrong Answer] |

C. | 3.1 A [Wrong Answer] |

D. | 0 [Correct Answer] |

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Explanation:-
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⇒ The output

*y*(

*t*) of a linear time invariant system is related to its input

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*y*(

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_{d}*x*(

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*) + 0.5*

_{d}*x*(

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*+ 7). The filter transfer function*

_{d}*H*(ω) of such a system is given by

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*e*

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*e*

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*e*

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⇒ In the transformer shown in the figure, the inductance measured across the terminal 1 and 2 was 4 H with open terminals 3 and 4. It was 3H when the terminals 3 and 4 were short circuited. The coefficient of coupling woul

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D. | Excessive Hum | 4. | Mixer stage |

A-3, B-2, C-1, D-4

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**Reason (R):** The reverse saturation current in a semiconductor diode doubles for every 10°C rise in temperature.

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