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What does Ohm’s Law describe?
The relationship between voltage, current, and resistanc
Gravity and motion
The behavior of magnets
The energy in a chemical reaction
What is the formula for Ohm’s Law?
P = IV
V = IR
I = VR
V = IR²
What does the symbol “V” represent in Ohm’s Law?
Volume
Voltage
Vacuum
Velocity
If V = 12V and R = 4Ω, what is the current (I)?
6A
3A
2A
4A
Resistance is measured in:
Watts
Volts
Ohms
Amperes
What happens to current if resistance increases and voltage stays the same?
Nothing changes
Voltage increases
Current increases
Current decreases
What unit is used for measuring current?
Ohms
Volts
Amperes
Watts
If a circuit has 10V and 2A, what is the resistance?
50 Ω
5 ohms
0.2 ohms
20 ohms
Who is Ohm’s Law named after?
Isaac Newton
Georg Simon Ohm
Albert Einstein
Thomas Edison
Which of these is NOT part of Ohm's Law?
Voltage
Current
Resistance
Power
What happens to the current if voltage doubles and resistance stays the same?
Voltage stays constant
Current doubles
Current halves
Resistance doubles
A wire with high resistance will allow:
No current to flow
Less current to flow
Unlimited current to flow
More current to flow
What does the symbol Ω stand for?
Amps
Watts
Volts
Ohms
If you increase resistance in a circuit but keep voltage the same, what will happen to current?
It will increase
It will become infinite
It will stay the same
It will decrease
Which equation is a rearranged form of Ohm's Law to find resistance?
R = V / I
R = VI
R = V × I
R = I / V
In the equation V = IR, what does “I” stand for?
Impedance
Ion flow
Current
Inductance
