Resistors in Series and Parallel
In a series circuit, this property of resistors adds up to give the total resistance.
What is resistance?
What is Ohms Law
V=IR
Kirchhoff’s first rule, also known as this, states that the sum of currents entering a junction equals the sum of currents leaving it.
It=I1+I2+..................
This device is used to measure voltage in a circuit.
What is a voltmeter?
In a parallel circuit, this property of resistors adds up to give the total conductance.
What is the reciprocal of resistance?
directly proportional
This component is used to limit the flow of current in a circuit.
a resistor
This device is used to measure current in a circuit.
What is an ammeter?
If two resistors, R1 and R2, are in parallel, the total resistance (Rt) is given by this formula.
What is 1/Rt = 1/R1 + 1/R2?
How are voltage and resistance related?
directly proportional
This measures the potential difference across two points in a circuit.
voltmeter
A voltmeter must be connected in this manner with the component whose voltage is to be measured.
What is in parallel?
In a series circuit, this property is the same through all resistors.
What is current?
How are resistance and current related?
Inversely Proportional
If a 6 V battery drives 2 A through a resistor, what is the resistance?
3 Ohms
An ammeter must be connected in this manner with the component whose current is to be measured.
What is in series?
In a parallel circuit, this property is the same across all resistors.
What is voltage?
If you double the voltage in a circuit what else changes? (be specific)
The current will double
In this type of circuit, the total resistance is the sum of individual resistors.
a series circuit
The internal resistance of a voltmeter should be this to minimize its impact on the circuit.
What is very high?