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WorksheetsHPHY_Unit 5.2 Checkpoint
Total questions: 23
Worksheet time: 24mins
1) What is the equivalent resistance of this circuit?
(a)
What is the equivalent resistance of this circuit?
29
0.5
2.0
11
What is the voltage if a resistance of 25 Ω produces a current of
250 amperes?
(a)
What is the current produced by a voltage of 240 V through a
resistance of 0.2 Ω?
800 A
1000 A
1200 A
1400 A
What resistance would produce a current of 120 amps from a 6-V
Battery?
5 Ohms
0.5 Ohms
0.05 Ohms
0.005 Ohms
Draw the IV Curve for an Ohmic Device
The (a) across each device is the same in a parallel network of resistors
the ______ for each device in a parallel network of resistors is different
current
voltage
the ______ for each device in a series network of resistors is different
voltage
current
the ______ for each device in a series network of resistors is the same
current
voltage
The symbol "I" is
current
voltage
resistance
power
For a series network of 4 resistors which of these resistors would dissipate the most power.
2 Ohms
4 Ohms
6 Ohms
8 Ohms
For a parallel network of 4 resistors which of these resistors would dissipate the most power.
2 Ohms
4 Ohms
6 Ohms
8 Ohms
Which of these combinations of resistors would make the battery die out faster
Calculate the electrical power supplied to a 12V electrical heater when the current passing through it is 3.0A.
The microwave in my kitchen is rated at 805W when connected to the 230V mains. What would be the current in the microwave
In a circuit, a current of 2.5 A flows through a resistor with a resistance of 10 ohms. What is the Power?
A circuit has a voltage of 12 volts across a resistor with a resistance of 6 ohms. Calculate the power dissipated in the circuit
An ideal Ammeter would have ______ resistivity
large
small
A voltmeter measure the voltage across a device... it must be wired in _____
parallel
series
A ammeter measure the current through a device... it must be wired in _____
series
parallel
All electrical devices obey ohm's law
true
false
Why is the voltmeter incorrectly reading a negative value? What could be done to change this to a positive value?
