Review

When dealing with resistors, in a Series Circuit, which of the following quantities remain the same throughout the circuit:

• current

• voltage

• current and voltage

• none of the above

When dealing with resistors, in parallel circuit, which of the following quantities remain the same throughout the circuit:

• current

• voltage

• current and voltage

• none of the above

If a set of electrical bulbs are to be connected in series or parallel configuration, in which configuration does the bulbs glow brighter:

• series

• parallel

• brightness does not depend on the bulb configuration

• the Pauli configuration

As more resistors are added in series, the equivalent resistance of the circuit approaches infinity. In contrast, as more resistors are added in parallel, the equivalent resistance

• approaches infinity

• approaches zero

• becomes zero

• $approaches\ 1\ \Omega$

Appliances with three-pronged plugs compared to those with two-prong plugs are

• safer to use and connected to ground

• no safer to use and ungrounded

• more dangerous to use and connected to ground

• safer to use and ungrounded

True or False: While discharging, the terminal voltage of a battery can never be greater than the emf of the battery.

• true

• false

In the figure, the current is measured with the ammeter at the bottom of the circuit. When the switch is opened, the reading on the ammeter

• increases

• decreases

• does not change

The circuit in the figure below consists of two resistors, a switch, an ammeter, and a battery. When the switch is closed, power Pc is delivered to resistor R1. When the switch is opened, which of the following statements is true about the power Po delivered to R1?

• Po < Pc

• Po = Pc

• Po > Pc

In the figure below, the current is measured with the ammeter on the right side of the circuit diagram. When the switch is closed, the reading on the ammeter

• increases

• decreases

• remains the same

Suppose you have three identical lightbulbs, some wire, and a battery. You connect one lightbulb to the battery and take note of its brightness. You add a second lightbulb, connecting it in parallel with the previous lightbulbs, and again take note of the brightness. Repeat the process with the third lightbulb, connecting it in parallel with the other two. As the lightbulbs are added, the brightness of the lightbulbs (neglect the battery’s internal resistance

• increases

• decreases

• remains the same

• More information is needed