AE & JE EE Quiz: Basic Electrical and Network Theory Booster Quiz -1

A solenoid is 2 m long and 5 cm in mean diameter. It has 4 layers of windings of 80 turns each and carries a current of 6 A. What is the magnetic field at its center?

A resistor is connected across a 50 V source. The current in the resistor if the color code is red, Green, orange and silver is?

A copper wire is 1 m long and has a uniform cross section of 0.1 mm². The resistance of wire at room temperature is 0.171 Ω. What is the resistivity of the material?

An energy source forces a constant current of 2A for 10s to flow through a light bulb. If 2.3 kJ is given off in the form of light and heat energy, what is the voltage drop across the bulb ?

In a parallel resistive circuit, opening a branch result in

1) Increase in total resistance

2) Decrease in total power

3) No change in branch voltage

Which of the above is /are correct?

An ideal current source is connected in parallel with an ideal voltage source, the combination will act as:

A network consists of 10 resistors and a voltage source. If the value of each resistor is doubled then voltage across each resistor is:

The number of independent KVL and KCL equations for a network with n-nodes and l links are respectively

Consider the following statements:

(i) Two ideal current sources cannot be connected in series.

(ii) Active element has ability to deliver power for infinite duration.

(iii) Voltage & current source are active elements.

(iv) Series resonance circuit is called current rejector circuit.

Which of the above statements are correct?