Electric Circuits Answers

A 100 nC charge is placed at the origin. A -50 nC charge is placed at x= 5 cm and a 200 nC is placed at x= -10 cm.

 a. What is the net electrostatic force acting on 100 nC charge?

Three positively charged spheres, each with a charge of 4.0 x 10 ^-6 C, are fixed at the vertices of an equilateral triangle whose sides are 20 cm long. Calculate the magnitude of the net electrostatic force on the third charge.

a.9.24N ; Ɵ = 30°

b.16.24N ; Ɵ = -60°

c.6.24N ; Ɵ = -30°

d.8.24N ; Ɵ = -30°

A 100 nC charge is placed at the origin. A -50 nC charge is placed at x= 5 cm and a 200 nC is placed at x= -10 cm.

 a.What is the net electrostatic force acting on 100 nC charge?

a.0.876 N

b.0.24 N

c.0.04 N

d.0.78 N

A 220v 60hz of alternating current is connected to an inductance of 3.5h what is the current passing through the inductor

Find out the inductor current equation for an RL circuit with step response, assume the initial current through the inductor is 𝐼0.

In an R–L–C series circuit a maximum current of 0.5 A is obtained by varying the value of inductance L. The supply voltage is fixed at 230 V, 50 Hz. When maximum current flows through the circuit, the voltage measured across the capacitor is 350 V. What are the values of the circuit parameters? 

Apply transient analysis in RL circuit and reduce expression for current in such circuits.

A current of 2.0 A is measured when a battery is connected across a resistor, R1 = 10Ω. When the same battery is connected across another resistor, R2 = 6.0Ω resistor, the current changes to 3.0 A. 

(a)          Calculate the potential differences across each of resistors.

(3 marks)

(b)          Find the emf and the internal resistance of the battery.

(9 marks)

(c) Determine the power dissipated in each resistor.

(3 marks) 

A 100 nC charge is placed at the origin. A -50 nC charge is placed at x= 5 cm and a 200 nC is placed at x= -10 cm.

a. What is the net electrostatic force acting on 100 nC charge?

A 100 nC charge is placed at the origin. A -50 nC charge is placed at x= 5 cm and a 200 nC is placed at x= -10 cm.

a. What is the net electrostatic force acting on 100 nC charge?