Module 1.3 - Electrical Circuits Flashcards
1
Q
What is a voltmeter?
A
measures potential energy difference across a resistor
it has a high resistance in a parallel to the circuit
it does not draw current from the circuit.
2
Q
what is an ammeter?
A
measures the current that flows through a resistor
it is a low resistance device that is placed in a series with a resistor in a circuit
3
Q
What is the difference between a series and parallel circuit?
A
A series circuit has whole components on one branch whereas parallel has components on multiple branches.
4
Q
Why is a voltmeter used in a parallel circuit?
A
Because throughout a parallel circuit volts stay the same
5
Q
Why is a ammeter used in a series circuit?
A
Because throughout a series circuit current stay the same
