Elec. Circuits: Voltage, Current and Resistance

Question 1

Voltage

Answer 1

Energy transferred per unit charge passed: 1V = 1J/C

Question 2

(dis)Advantages of Series

Answer 2

All components can be controlled by a single switch
Uses less wiring and power
Components cannot be controlled seperately - If one component breaks, all stops working

Question 3

Current in Series vs Parallel

Answer 3

Series: Current same everywhere
Parallel: Current splits and adds at junctions

Question 4

(dis)Advantages of Parallel

Answer 4

Low total resistance
Components can be individually controlled
Each component is independent of working properly
Similar Brightness
Lots of wiring

Question 4

As Voltage increases

Answer 4

Current Increases

Question 5

If Resistance Increases

Answer 5

Current Decreases

Question 6

Voltage in Series vs Parallel

Answer 6

Series: Voltage distributed
Parallel: Voltage same

Question 7

Resistance in Series vs Parallel

Answer 7

Series: Sum of all resistance
Parallel: 1/R + 1/R2 + 1/R3

Question 8

Milli -

Answer 8

1/1000th
e.g millimeter = 100cm/1000 = 0.1cm