Electrical Engineering Answers

A one meter of annealed copper 2.5 cm in diameter is drawn until its resistance is 100 times the initial resistance, its diameter afterward is?

A current of 90 A is shared by three resistances in parallel. The wires are of the

same material and have their lengths in the ratio 2: 3: 4 and their cross-sectional areas

in the ratio 1: 2: 3. Determine current in each resistance

How does the sine and cosine functions affects the symmetry (either

even or odd) of the synthesised periodic signals?

1. Develop a flow chart serve asguide in solving electric circuits problems using superposition theorem.

A non-inverting amplifier is working on 120 mV with input resistance of 300 and feedback resistance of 1500. Calculate its gain and design the circuit by showing all parameters.

Two resistor RA = 1.95ohms, and RB = 0.05 ohm are connected in parallel and take a total current of 50 amp. What is the current through each resistor.

Three resistors A, B, and C are connected in parallel to a 120 volt source. If RA is = 60 ohms and RB is = 40 ohms, IC is 5 amp, calculate the equivalent resistance and the total current of the circuit.

Three resistors R_A, R_B and R_C are connected in series and to a 120volt source. If R_B = 2R_A, R_C = 3R_A , when the circuit current is 10 amp, calculate the resistance of each resistor.  

A 6 ohm load is connected to a 120volt source through a pair of 0.25 ohm conductors. Calculate (a) the load current and voltage, b) the voltage drop in h line wires.

Three resistors A, B, and C are connected in series to a 120 volt source. If R_A is = 64 ohms and E_B = 40volts, when the current is 0.5 amp, calculate the resistances R_B and R_C.