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
[9]
A periodic voltage waveform observed on an oscilloscope across a load
is shown. A permanent magnet moving coil (PMMC) meter connected across
the same load reads [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
