Question

1. In the Coulomb's Law experiment, charges carried by the spheres were proportional to the a. potential b. current c. resistance d. temperature 2. Two point charges are 4 cm apart. They are moved to a new separation of 2 cm. By what factor does the electric force between them change? a. 2 b. 1/2 c. 4 d. 1/4 3. By mapping the equipotential lines, you can draw a. the charge b. the electric field lines c. nothing d. the magnetic field lines 4. A galvanometer was used in which of the following experiment? a. Coulomb's law b. Measurement of E/M for electrons c. Reflection and refraction d. Mapping the electric field 5. When a dielectric was inserted between the plates of the capacitor, the capacitance a. increased b. decreased c. was zero d. wasn't affected 6. When verifying Ohm's law, you found that the electric current was a function of a. capacitance b. voltage c. milliamps d. time 7. When verifying the heating effect of an electric current, every 60 seconds, you measured the a. temperature b. time c. resistance d. current 8. Fig. 1 is a Wheatstone bridge circuit. No current flows through the galvanometer. You find Rx is a. 1 ? b. 5 ? c. 25 ? d. 144 ? 9. When verifying Ohm's law, you plotted a current-voltage graph based on the measured data for an unknown resistor, as shown in Fig. 2. Its resistance is estimated to be a. 0.00006 ? b. 0.00142 ? c. 16.7 k? d. 704 ?

          1. In the Coulomb's Law experiment, charges carried by the spheres were proportional to the
a. potential b. current c. resistance d. temperature

2. Two point charges are 4 cm apart. They are moved to a new separation of 2 cm. By what factor does
the electric force between them change?
a. 2 b. 1/2 c. 4 d. 1/4

3. By mapping the equipotential lines, you can draw
a. the charge b. the electric field lines c. nothing d. the magnetic field lines

4. A galvanometer was used in which of the following experiment?
a. Coulomb's law b. Measurement of E/M for electrons
c. Reflection and refraction d. Mapping the electric field

5. When a dielectric was inserted between the plates of the capacitor, the capacitance
a. increased b. decreased c. was zero d. wasn't affected

6. When verifying Ohm's law, you found that the electric current was a function of
a. capacitance b. voltage c. milliamps d. time

7. When verifying the heating effect of an electric current, every 60 seconds, you measured the
a. temperature b. time c. resistance d. current

8. Fig. 1 is a Wheatstone bridge circuit. No current flows through the galvanometer. You find Rx is
a. 1 ? b. 5 ? c. 25 ? d. 144 ?

9. When verifying Ohm's law, you plotted a current-voltage graph based on the measured data for an
unknown resistor, as shown in Fig. 2. Its resistance is estimated to be
a. 0.00006 ? b. 0.00142 ? c. 16.7 k? d. 704 ?

$1. In the Coulomb's Law experiment, charges carried by the spheres were proportional to the a. potential b. current c. resistance d. temperature 2. Two point charges are 4 cm apart. They are moved to a new separation of 2 cm. By what factor does the electric force between them change? a. 2 b. 1/2 c. 4 d. 1/4 3. By mapping the equipotential lines, you can draw a. the charge b. the electric field lines c. nothing d. the magnetic field lines 4. A galvanometer was used in which of the following experiment? a. Coulomb's law b. Measurement of E/M for electrons c. Reflection and refraction d. Mapping the electric field 5. When a dielectric was inserted between the plates of the capacitor, the capacitance a. increased b. decreased c. was zero d. wasn't affected 6. When verifying Ohm's law, you found that the electric current was a function of a. capacitance b. voltage c. milliamps d. time 7. When verifying the heating effect of an electric current, every 60 seconds, you measured the a. temperature b. time c. resistance d. current 8. Fig. 1 is a Wheatstone bridge circuit. No current flows through the galvanometer. You find Rx is a. 1 ? b. 5 ? c. 25 ? d. 144 ? 9. When verifying Ohm's law, you plotted a current-voltage graph based on the measured data for an unknown resistor, as shown in Fig. 2. Its resistance is estimated to be a. 0.00006 ? b. 0.00142 ? c. 16.7 k? d. 704 ?$

Added by James S.

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