Electric Circuits Answers

A 2.5 kΩ resistor dissipates 0.5 W. The energy by this resistor in 3 minutes is _________.

A 9.0 V battery supplies 1.4 A to a 6.0 Ω resistor. What is the terminal voltage of the battery?   

An electrolytic capacitor is charged to 15 V when a constant current of 1.0 A is passed through it for 30 µs. What is the value of its capacitance?     

Determine the total capacitance if a 30 pF capacitor is connected in series with 0.03µF  capacitor. 

What unit is the rate of flow of electrical charge and is measured in Coulomb per second.

Which diode approximation

a. treats a reverse-biased diode like an open switch with

zero current?

b. includes the high leakage resistance when the diode

is reverse-biased?

The capacitors have values C1 = 2.5 µF and C2 = 4.0 µF, C3 =

6.0 µF C4 = 8.0 µF and the potential difference across the battery is

12.0 V. Assume that the capacitors are connected in series. Find the

equivalent capacitance of the circuit and solve for the potential

difference across each capacitors.

The electrostatic field strength of a proton at distance r is E₁. What would be the strength of the field, E₂ when the distance is doubled?

Determine the total capacitance if a 30  pF  capacitor is connected in series with a 0.03 μF capacitor.     Capacitance =

Khadija becomes positively charged when she touches the metal sphere of a Van der Graaf generator. Why does this happen?