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Part III. Bonus Question (7 points).

Which configuration produces the strongest electric field? A) A large charge far awayB) A small charge nearbyC) A large charge nearbyD) A small charge far away

Part I. Multiple Choices. (2.5*10=25 points)

The work done in moving a charge qq through a potential difference VV is: A) qVqVB) qV\frac{q}{V}​C) V/qV/qD) q2Vq^2V

A voltmeter is used to measure: A) Electric currentB) Voltage across a componentC) Resistance of a componentD) Power of the circuit

Which of the following materials is a good conductor of electricity? A) RubberB) CopperC) WoodD) Glass

A device used to measure electric current in a circuit is called: A) VoltmeterB) AmmeterC) OhmmeterD) Galvanometer

Three resistors 6 Ω,3 Ω,6 \, \Omega, 3 \, \Omega,and 2 Ω2 \, \Omega are connected in parallel to a 12 V12 \, \text{V} battery. Calculate the total current supplied by the battery.

Kirchhoff’s voltage law (KVL) states that: A) The current is proportional to the voltageB) The total voltage in a loop is equal to zeroC) The resistance is inversely proportional to the currentD) The power is conserved across all circuit elements

The resistance of a conductor depends on: A) Its length and cross-sectional areaB) The temperature of the conductorC) The material of the conductorD) All of the above