Electric Circuits Answers

what must be the charge on a particles of mass 2g for it to remain stationary in the labrotary when placed in a downward directed electric field of 500NC-1

Suppose many capacitors, each with 𝐶 =90.0 μ𝐹, are connected in parallel across a battery

with a potential difference of ∆𝑉 =160.0 𝑉. How many capacitors are needed to store 95.6 J

of energy?

Suppose a thundercloud with a width of 2.0 𝑘𝑚 and a length of 3.0 𝑘𝑚 hovers at an

altitude of 500 𝑚 over a flat area. The cloud carries a charge of 160 𝐶, and the ground

has no charge.

Problem1: What is the potential difference between the cloud and the ground.

A parallel plate capacitor is connected to a battery for charging. After some time, while

the battery is still connected to the capacitor, the distance between the capacitor plates is

doubled. Which of the following is (are) true?

How much energy is stored in the 180 μ𝐹 capacitor of a camera flash unit charged to

300.0 𝑉?

A battery of e.m.f E and negligible internal resistance R1 and R2 connected in parallel. Calculate the current through R2 in terms of R1

a) A total charge of 72 Coulombs is transmitted by a silver wire 1.5 mm in a diameter over a time of 1 hour and 30 minutes. What is the current and it’s density in the wire?

A current of 3 A flows through a resistor for 6 minutes. Determine the power dissipated in the resistor if 3V existed across the resistor.

A current of 3 A flows through a resistor for 6 minutes. Determine the power dissipated in the resistor if 3V existed across the resistor.

a) A total charge of 72 Coulombs is transmitted by a silver wire 1.5 mm in diameter over a time of 1 hour and 30 minutes. What is the current and its density in the wire?