ELECTRICITY CIRCUITS

AVAILABLE VOLTAGE

Using a voltmeter I measured the available voltage and these are my findings:

• The Positive 12v Supply (B+) = 12 Volt
• Terminal before the switch = 12 volt
• Terminal after the switch = 12 volt
• Terminal before the light bulb = 12.5 Volt
• Terminal after the light bulb = 0 Volt
• The negative on the 12v supply (N-) = 0 volt

While the voltage progressess through different components of the circuit you can clearly see that the voltage gets less as it gets used up pushing through the resistance.

VOLTAGE DROP
Again I used the volmeter to measure the voltae drop across the different components of the circuit and my findings are below:

• From the B+ of the 12v supply to the input of the switch = 0.07v
• From the input of the switch to the output of the switch = 0.03v
• From the output of the switch to the input of the bulb = 0.03v
• From the input of the bulb to thye output of the bulb = 12.78v
• From the output of the bulb  to the N- of the 12v supply 0.1v

A voltage drop in an electrical circuit normally occurs when current is passed through the wire. The greater the resistance of the circuit, the higher the voltage drop. The largest voltage drop in my finding are from the input of the bulb to the output of the bulb, the reason for this is because when there is more voltage there is more resistance.

MEASURING AMPS IN A CIRCUIT
Using a amp meter I measure the amps  at different parts of the circuit, my findings are below:

• Wire before the switch = 0.33 amp
• Wire before light bult 1 = 0.33 amp
• Wire between light bulb 1 & 2 = 0.33 amp
• Wire between light bulb 2 & 3 = 0.33amp
• Wire after light bulb 3 = 0.33 amp

The measurement on the circuit is showing the same reading because the same amount of amp is going through the circuit.