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Electric Circuits
Bipolar junction transistor (BJT) is a voltage controlled device. state True or false, also give reason of your answer.
Electric Circuits
Suppressor grid in pentode is kept at anode potential. State true or false, also give a reason for your answer.
Electric Circuits
In L-C-R circuit, the current and voltage are in same phase only at a single
frequency. state true or false, also give a reason of your answer .
frequency. state true or false, also give a reason of your answer .
Electric Circuits
Two wires A and B, a variable resistor R are connected in series to a battery. What is the result if resistance R is increased
Electric Circuits
Using Maxwell equation in free space drive the Wave equations for the electric field vector obtain the condition under the which of the following time varying electric and magnetic field satisfy Maxwell equation in vacuum with no source charges or current
Electric Circuits
A DC ammeter reads a steady current of 120 mA. How many electrons move in it in 1 minute?
Electric Circuits
What current, in units of milliAmperes, would produce a potential difference of 7.5 V across a 25 Ω resistor?
Electric Circuits
A 5.0 ohms and 20 ohms resistor are connected in the series. If the power dissipated in the 5.0 ohms resistor is 12.5 watts, what is the potential difference across the 20 ohm resistor?
Electric Circuits
A 2-C charge and a 4-C charge attract each other with 10 N of force. How much will a 2-C charge and a 12-C charge attract each other when placed the same distance apart?
Electric Circuits
At the centre of an air core solenoid, the value of the magnetic field B is 0.40 mT. If
the current flowing in the solenoid is 0.4 A, calculate the number of turns per cm.
the current flowing in the solenoid is 0.4 A, calculate the number of turns per cm.
