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