The potential difference is a way of measuring the amount of energy transferred to a component by a current. Potential difference is measured using a voltmeter. The voltmeter is placed in parallel with the component. It measures the difference in energy between the electrons going into the component and those coming out.
Potential difference(V)= current(A) x resistance(ohm) V=IxR
If you increase the voltage - then more current will flow If you increase the resistance - then less current will flow (Or more voltage will be needed to keep the same current flowing)
Current = 0.05. Resistance = 9.4 Potential difference = 0.05 x 9.4 = 0.47
2.3) If you increase the potential difference in a circuit then more current will flow so the current in a circuit depends on the potential difference of the source. Without the potential difference, current would not be able to flow through a circuit as current is the rate of flow of charge around the circuit and current will only flow through a component if there is a potential difference across the component. Potential difference is the driving source that passes the current around.
You always connect a voltmeter parrellely because it then measures the volts over the top of the connection using two extra wires
ReplyDeleteThe potential difference is a way of measuring the amount of energy transferred to a component by a current. Potential difference is measured using a voltmeter. The voltmeter is placed in parallel with the component. It measures the difference in energy between the electrons going into the component and those coming out.
ReplyDeletePotential difference(V)= current(A) x resistance(ohm)
V=IxR
If you increase the voltage - then more current will flow
If you increase the resistance - then less current will flow
(Or more voltage will be needed to keep the same current flowing)
Current = 0.05. Resistance = 9.4
Potential difference = 0.05 x 9.4 = 0.47
2.3) If you increase the potential difference in a circuit then more current will flow so the current in a circuit depends on the potential difference of the source. Without the potential difference, current would not be able to flow through a circuit as current is the rate of flow of charge around the circuit and current will only flow through a component if there is a potential difference across the component. Potential difference is the driving source that passes the current around.
ReplyDelete