Q. How strong is the electric field between the plates of a 0.80 air-gap capacitor if they are 2.0 apart and each has a charge of 74 ?
Q. A hobbyist building a radio needs a 150 ohm resistor in her circuit, but only has a 220 ohm, a 79 ohm, and a 92 ohm, resistor available. How can she connect these resistors to produce the desired resistance?\