71. To which component of an RC circuit is the power dissipation due?
72. A resistor in a circuit becomes very hot and starts to burn. This is because the resistor is dissipating too much:
73. For a particular toroidal inductor core, the inductance value obtained for 50 Turns is 200 µH. If two such inductors are wired in parallel, the resulting inductance is
74. How many equations are necessary to solve a circuit with two principal nodes?
75. In figure show the voltage source:

76. Two coupled coils have self inductances L1 = 10 mH and L2 = 20 mH. The co-efficient of coupling (K) being 0.75 in the air. Voltage in the second coil when the current in circuit is given by I = 2 sin (314t) A is . . . . . . . .
77. Resistivity of a wire depends on
78. Impedance Z as shown in the given figure is

79. In the circuit below, if the power dissipated in the 6 Ω resistor is zero then V is

80. Consider the following equations:
V1 = 6V2 - 4I2
I1 = 7V2 - 2I2
A, B, C and D parameters are
V1 = 6V2 - 4I2
I1 = 7V2 - 2I2
A, B, C and D parameters are
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