Electric Circuits Answers

Three branches, possessing a resistance of 50ohm, an inductance of 0.15H and a capacitor of 100µF respectively, are connected in parallel across a 100V, 50Hz supply. Calculate

a) The current in each branch

b) The supply current

• c) The phase angle between the supply current and the supply voltage.

-6e-3tcos(15t)nc

A series RC circuit has R=240 and C=102uF. It is connected in parallel to an inductor of 200mH and the combination is connected across a 220V, 60Hz source. Find the current in each branch.

Answer the Following Problem

Direction: Find all the currents and voltages across each resistor and cell in the following circuits;

1.

2.

3.

4.

5.

6.

A conductor carries a current that is equivalent to a 5-amp continuous current in one direction and a superimposed full-wave rectifier current in the opposite direction. What is the maximum value of the latter if the average conductor current is zero?

A conductor carries a current that is equivalent to a 5-amp continuous current in one direction and a superimposed full-wave rectifier current in the opposite direction. What is the maximum value of the latter if the average conductor current is zero?

In your opinion, between Fiber Optic A and Fiber Optic B, which fiber has better construction. Explain the reasons.

A small 15.0 g plastic ball is suspended by a 30.0 cm string in a uniform electric field of 
3000  N/C, as shown in the picture. If the ball is in equilibrium when the string makes a 45° angle with the vertical as indicated, what is the net charge on the ball?

Four resistance each of R ohms and two resistances each of S ohms are connected (as shown in Fig.

2.50) to four terminasl AB and CD. A p.d. of V votls is applied across the terminals AB and a

resistance

Assume that the 60-dB bandwidth of a receiver is 12 kHz and the 6-dB bandwidth is 7 kHz. What is the shape factor of the circuit?