Instrumentation Engineering
GATE IN topic:electrical-circuits PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 44. Imported answers require independent review unless marked reviewed.
Question 33
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The diode in the circuit is ideal. The current source
mA. The magnitude of the average current flowing through the resistor R is _____ mA (rounded off to two decimal places).
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In the circuit shown,
rad/s,
and
mH. The capacitance
for which
is purely real is ____________ mF (rounded off to two decimal places).
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A short-circuit test is conducted on a single-phase transformer by shorting its secondary. The frequency of input voltage is 1 kHz. The corresponding wattmeter reading, primary current and primary voltage are 8 W, 2 A and 6 V respectively. Assume that the no-load losses and the no-load currents are negligible, and the core has linear magnetic characteristics. Keeping the secondary short, the primary is connected to a 2 V (RMS), 1 kHz sinusoidal source in series with a
mF capacitor. The primary current (RMS) will be _____ A (rounded off to two decimal places).Log in to check the answer
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In the diagram shown, the frequency of the sinusoidal source voltage
is 50 Hz. The load voltage is 230 V (RMS), and the load impedance is
. The value of attenuator
. The multiplier output voltage
, where
and
are the inputs. The magnitude of the average value of the multiplier output
is __________ V (rounded off to one decimal place).
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In the circuit shown, assuming an ideal opamp, the value of the output voltage
____ V (rounded off to one decimal place).
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The voltage source
V has an internal resistance of 50 Ω. The RMS value of the current through R is ______mA (rounded off to one decimal place).
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 33
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In the bandpass filter circuit shown,
,
,
. The Q factor of the filter is ________ (round off to two decimal places) 
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In the circuit shown, the load is driven by a sinusoidal ac voltage source
V at 50 Hz. Given
,
F,
mH and
, the power factor is ______ (round off to one decimal place) 
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Given Circuit A with currents
and
as shown, the current
in Circuit B (in amperes), is ______ (round off to one decimal place) 
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In the balanced three-phase circuit shown,
F and the line-to-line r.m.s. voltage is 440 V at 50 Hz. The reading on the wattmeter (in watts) is ______ (round off to two decimal places) 
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