Chapter 22: Exam 2 ACTUAL UPDATED QUESTIONS AND CORRECT ANSWERS

Chapter 22: Exam 2 ACTUAL UPDATED QUESTIONS AND CORRECT ANSWERS

What charge carriers in metals are A


A. electrons
B. positrons
C. protons
D. A mix of protons and electrons


A battery is connected to a resistor. increasing the B. Decrease the current in the circuit
resistance of the resistor will


A. increase the current in the circuit
B. decrease the current in the circuit
C. not affect the current in the circuit.


A battery is connected to a resistor. As charge flows, the D. thermal energy
chemical energy of the batter is dissipated as


A. current
B. voltage
C. charge
D. thermal energy


The power dissipated in a resistor can be written as D. all of the above


A. I delta VR
B. (deltaVR)^2/R
C. I^2R
D. all of the above
E. none of the above


A wire carries a current. if both the wire diameter and the D. 8
electron drift speed are doubled, the electron current i.e. is inversely proportional to Avd
increases by a factor of


A. 2
B. 4
C. 6
D. 8
E. some other value