Electrical Engineering Answers

Draw and create a Clipper Dual Diode Clipper, consider the diode as a Silicon. 

Derive the resonant frequency for series RLC circuit. [4marks]

 for maximum power transfer. [5 marks] 

 i. The value of 𝑅𝐿

a

 ii. Find the maximum power. [5 marks] 

b

(c)Given the circuit of fig 5.1below. Determine; 

6Ω

12Ω

(b)Derive maximum power transfer formula. [4marks]

12V

 iii. State the condition for maximum power transfer. [2 marks] 

RL2A

3Ω2Ω

A series RC circuit consists of resistor with a resistance of 50 Ω and a capacitor of capacitance of 

c)Derive an equation of the instantaneous voltage across the capacitor, 𝑉𝐶.

 𝑉𝑅= 10.5 cos2000𝜋𝑡

e)Determine the equation of the instantaneous voltage of the ac source, 𝑣𝑠

a)Derive an equation for the instantaneous current that flows in the circuit.

20 µF.The instantaneous voltage across the resistor 𝑉𝑅is given as;

.

b)Calculate the reactance of the circuit.

d)Sketch a phasor diagram of the circuit.

In your opinion, what do you think is the main disadvantage of a Clipper circuit over a Clamper Circuit?

a certain cnductor has a free electron density of 2x10^30 electrons per cubic feet. Its circular cross secctional area is 150000 square mils and 120 m long. Its resisitivity at 30 degrees. Celcius is 0.9x10^-8 ohm meter. If a current of 3 A passes thru this conductor. Find the drift velocty

(b)  

(a) Write down the equation for a sinusoidal voltage of 50 Hz and its peak value is 20 V. 

phase angle between voltage and current.