the resistance in half , then the current will

Answer

[2] If four resistors are connected in series, each with a

value of 4Kohm, the total resistance is

Answer

[3] Three resistors each with a value of 0.069M ohm are in

parallel. The total resistance is

Answer

[4] Proper biasing in

an amplifier circuit

oscillate

impedance match

using a voltage divider network

flow

Answer

[5] A transistor can

be protected from needless overheating by

resistor

power supply when the circuit is off

Answer

[6] A bleeder resistor

the capacitor in a power supply

from drawing too much current

amplifier from being over driven

of an amplifier

Answer

[7] An advantage of

rheostat over a potentiometer is

higher frequencies

precise

more current

better with dc

Answer

[8] The average power delivered to an impedance (4 – j3)Ω by a current 5cos(100πt + 100π)A is [GATE 2012]

Answer

[10]The bridge method commonly used for finding mutual inductance is

[GATE 2012]

Answer

Solution Hint: Heaviside-campbell equal ratio bridge is used for measuring self-inductance in terms of mutual inductance.

Schering bridge = used for measuring capacitance and dielectric loss of a capacitor.

De Sauty bridge = used for comparing the capacitances of two capacitors.

Wien bridge = used for audio-frequency measurement of capacitors over a wide range.

[11] An ideal voltage source will charge an ideal capacitor[Gate 1997]

(a) In infinite time

(b) Exponentially

(c) Instantaneously

(d) None of the above

Answer

[12] A practical current source is usually represented by[Gate 1997]

(a) A resistance in series with an ideal current source

(b) A resistance in parallel with an ideal current source

(c) A resistance in parallel with an ideal voltage source

(d) None of the above

Answer

[13] Energy stored in a capacitor over a cycle, when excited by an ac source is[Gate 1997]

(a) The same as that due to a dc source of equivalent magnitude

(b) Half of that due to a dc source of equivalent magnitude

(c) Zero

(d) None of the above

Answer

[14] A major advantage of the active filters is that they can be realized without using[Gate 1997]

(a) Opamps

(b) Inductors

(c) Resistors

(d) Capacitors

Answer

[15] The computer program which converts statements written in high

level language to object code is known as [Gate 1997]

(a) Assembler

(b) Operating system

(c) Object oriented software

(d) None of the above

Answer