Podcast
Questions and Answers
What does 'E' represent in Ohm's law?
What does 'E' represent in Ohm's law?
- Electrical power
- Electronic resistance
- Electromotive force (correct)
- Effort
What is the unit of measurement for 'E' in Ohm's law?
What is the unit of measurement for 'E' in Ohm's law?
- Volts (correct)
- Ohms
- Watts
- Amps
According to Ohm's law, if resistance increases, what happens to current?
According to Ohm's law, if resistance increases, what happens to current?
- It increases
- It stays the same
- It fluctuates
- It decreases (correct)
In a series circuit, how is the current distributed among the resistors?
In a series circuit, how is the current distributed among the resistors?
In a series circuit, what happens to the voltage across the resistors?
In a series circuit, what happens to the voltage across the resistors?
In a parallel circuit, what is true regarding the voltage across the resistors?
In a parallel circuit, what is true regarding the voltage across the resistors?
In a parallel circuit, how does current behave as it flows through each resistor?
In a parallel circuit, how does current behave as it flows through each resistor?
According to the power law, what happens to voltage if power increases and amperage stays the same?
According to the power law, what happens to voltage if power increases and amperage stays the same?
Flashcards
Ohm's Law 'E' unit ?
Ohm's Law 'E' unit ?
The unit for 'E' (electromotive force, or voltage) in Ohm's law is volts.
Ohm's Law 'R' increases, I ?
Ohm's Law 'R' increases, I ?
If resistance ('R') increases in a circuit, the current ('I') decreases, assuming voltage stays constant.
Ohm's Law 'V' increases, I ?
Ohm's Law 'V' increases, I ?
If voltage ('V') increases, the current ('I') increases, assuming resistance stays constant.
Series Circuit current?
Series Circuit current?
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Series Circuit voltage drop?
Series Circuit voltage drop?
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Parallel Circuit voltage?
Parallel Circuit voltage?
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Parallel Circuit current?
Parallel Circuit current?
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Power Law increase?
Power Law increase?
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Study Notes
Ohm's Law
- 'E' in Ohm's law formula stands for Electromotive force
- Units for 'E' are volts
- If resistance increases, current decreases.
- If voltage increases, current increases.
Circuit Types
- Series Circuit: Current is the same through each resistor.
- Series Circuit: Voltage drop across each resistor adds up to the source voltage.
- Parallel Circuit: Voltage drop across each resistor is the same as the source voltage.
- Parallel Circuit: Current flow through each resistor depends on resistance.
- Power Law: If power increases, voltage increases if amperage stays the same.
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