QUESTION 4 Coulomb's Law describes: a. Electric force exerted on one charged sphere, by another charged sphere. b. Volta

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Question 4 Coulomb S Law Describes A Electric Force Exerted On One Charged Sphere By Another Charged Sphere B Volta 1 (136.25 KiB) Viewed 41 times

QUESTION 4 Coulomb's Law describes: a. Electric force exerted on one charged sphere, by another charged sphere. b. Voltage induced in a coil by a constant magnetic field. c. Magnetic field surrounding a current-carrying conductor. d. Amount of heat generated by high current flow in a resistor. QUESTION 5 Which of the following statements about electric current is correct? ca. The amount of current flowing in a piece of silver wire with a voltage difference of zero across its two ends is never zero. The units of current are Watts per second. c. Current is defined as the time rate of charge flow across the cross-sectional area of a conductor. d. The flow of current is never visible to the naked eye under any circumstances. QUESTION 6 Which of the following statements about voltage is correct? ca. Voltage is defined as the time rate of change of the magnetic field surrounding a conductor in an AC circuit. b. According to Ohm's Law, increasing the voltage across a resistor results in a decrease in the amount of current flowing through the resistor.. c. Voltage is defined as the work performed to move charges in an electric field, per unit charge. d. Voltage flows between positive and negative terminals of a battery. QUESTION 7 Assume two negative charges are placed close to each other, with one charge fixed and one charge free to move. The free charge will: Ca.orbit the fixed charge in a circular motion. b. accelerate away from the fixed charge. c. remain stationary d. move closer to the fixed charge.