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If body P, with a positive charge, is placed in contact with body Q (initially uncharged), what will be the nature of the charge left on Q?

Which of the following is a resistor?

Some cars have 6.00-V electrical systems. (a) What is the hot resistance of a 30.0-W headlight in such a car? (b) What current flows through it?

The direction of the electric field line follows the path of a ______________

Which device has a larger internal resistance?

Two capacitors with CA greater than CB and are connected in series with a battery. Which of the following is true?

A circuit is set up with a batter connected to a capacitor. As the battery voltage increases, the charge density on the capacitor plates

A 6.0 nC charge is placed at the origin and a second charge -6 nC is placed on the x-axis at x = 0.30 m. What is the electric field at x = +0.15 m?

A copper wire has a resistance of 0.75 Ω at 20.0ºC, and an iron wire has a resistance of 0.525 Ω at the same temperature. At what temperature are their resistances equal? Material Coefficient   α = 1/oC 2 Copper 3.9 x 10-3 Iron 5.0 x 10-3   

Do I need a text book?