Question set 14
When a 20.0 V battery is connected to a resistor, the current through the resistor is 2.0 A. What is the resistor's value?
10 ohms
The current through a 10.0 ohm resistor connected to a 120.0 V power supply is
12 A
A 40.0 ohm resistor has a 4.0 A current in it. What is the voltage across the resistor?
160 V
A 10.0 ohm resistor has a 2.0 A current in it. What is the voltage across the resistor?
20 V
When a 40.0 V battery is connected to a resistor, the current through the resistor is 2.0 A. What is the resistor's value?
20 ohms
When a 20.0 V battery is connected to a resistor, the current through the resistor is 4.0 A. What is the resistor's value?
5 ohms
A 10.0 ohm resistor has a 5.0 A current in it. What is the voltage across the resistor?
50V
The current through a 10.0 ohm resistor connected to an 60.0 V power supply is
6 A.
the current through a 10.0 ohm resistor connected to an 60.0 V power supply is
6 A.
Three resistors, 1-ohm, 2-ohm, and 3-ohm are connected in series. Their equivalent resistance is
6 ohms.
A 20.0 ohm resistor has a 4.0 A current in it. What is the voltage across the resistor?
80 V
Three 300-ohm resistors in series give an equivalent resistance of
900 ohms
A circuit is made containing a battery and a single resistor. Decreasing the battery's electric potential difference will cause the total current in the circuit to
decrease.
As the number of resistors in a parallel circuit increases, the overall resistance __________ and the current in the circuit __________.
decreases, increases
If 5 identical bulbs are connected in series and one bulb goes out, the other bulbs
go out completely.
As more and more cells are added in series to a circuit containing a single light bulbs, the brightness of the bulb
increase
Compared to the resistance of two resistors connected in series, the same two resistors connected in parallel have
less resistance.
When two lamps are connected in parallel to a battery, the total electrical resistance that the battery senses is
less than the resistance of either lamp.
When two resistors are connected in parallel to a battery, the electrical resistance that the battery senses is
less than the resistance of either resistor.
The same circuit relationships that are true for resistors are true for light bulbs. (true/false)
true
