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Electric Circuits
Your hands are wet R(2400ohms) and you touch the terminal of a 12v battery
Electric Circuits
A series LCR circuit with L= 400 mH, C= 20 nF and R= 250 Ω is connected to an
AC source of 65 V. Calculate the resonance frequency and Q of the circuit. What is
the current flowing through the circuit and voltage across the capacitor at resonance
frequency?
AC source of 65 V. Calculate the resonance frequency and Q of the circuit. What is
the current flowing through the circuit and voltage across the capacitor at resonance
frequency?
Electric Circuits
State, with reasons, whether the following statements are True or False.
1. Ripple factor of a center tapped full wave rectifier is greater than that of a bridge
rectifier, which uses four diodes.
2. Operational amplifier in non-inverting mode cannot amplifynegative signals.
3. IC LM380 is a small signal amplifier used to amplifythe voltage.
4. Largest decimal number represented by a 2-digit hex number is 99.
5. In a CRO sweep generator output is given to the vertical deflection plates.
1. Ripple factor of a center tapped full wave rectifier is greater than that of a bridge
rectifier, which uses four diodes.
2. Operational amplifier in non-inverting mode cannot amplifynegative signals.
3. IC LM380 is a small signal amplifier used to amplifythe voltage.
4. Largest decimal number represented by a 2-digit hex number is 99.
5. In a CRO sweep generator output is given to the vertical deflection plates.
Electric Circuits
State, with reasons, whether the following statements are True or False.
i) Ideal voltage source has infinite internal resistance.
ii) Transformer is a passive device hence it cannot increase the voltage.
iii) Field effect transistor (FET) is a current controlled device.
iv) Forward biasing of a semiconductor junction diode reduces its energy band gap.
v) Amplifier with common collector mode offers maximum voltage gain.
i) Ideal voltage source has infinite internal resistance.
ii) Transformer is a passive device hence it cannot increase the voltage.
iii) Field effect transistor (FET) is a current controlled device.
iv) Forward biasing of a semiconductor junction diode reduces its energy band gap.
v) Amplifier with common collector mode offers maximum voltage gain.
Electric Circuits
Explain the construction and working of a differential amplifier type EVM.
Electric Circuits
Explain the working of D-flip flop. How does it differ from a D-latch?
Electric Circuits
A 4−bit DAC produces 22 mV output for a digital input of 1011. What is the
resolution for this DAC? Find out Vout for 0101.
resolution for this DAC? Find out Vout for 0101.
Electric Circuits
Design and draw the circuit diagram of a Mod-6 ripple counter.
Electric Circuits
Design and draw the circuit of a regulated power supply using LM 317 to provide
30V output.
30V output.
Electric Circuits
Draw a circuit of amplifier of gain 50 using IC 380. Use the non-inverting terminal
as input signal terminal.
as input signal terminal.
