Electricity

Question 1

Series circuit

Answer 1

Current is always the same, charge is not lost in bulbs but energy is energy converted
Rtot = R1 + R2 + R3

Question 2

Parallel circuit

Current

Answer 2

Current will divide at junctions and recombine. But it is always conserved
Current in each resistor is equal to current coming from battery
Rt = 1/R+1/R2+1/R3

Question 3

Parallel circuit

Voltage

Answer 3

Voltage in this circuit across resistors is the same as the voltage provided by battery
Find by adding each component
Rt= R1 x R2 / R1 + R1+R2

Question 4

Resistance

Answer 4

The opposition of the flow of current and is defined as the ratio of voltage to current

Question 5

Current

Answer 5

The rate of flow of charge

Coulombs per second

Question 6

Coulomb

Answer 6

Charge passing any point in a circuit when a steady current of 1 amp flows for 1 sec

Question 7

Ampere

Answer 7

Is that current flowing in conductor when a charge of I C flows past any point in one second

Question 8

Charge =

Answer 8

Current x Time

Q = I x T

Question 9

Milampere

Answer 9

1000mA = 1A

Question 10

Microampere

Answer 10

1000000uA = 1A

Question 11

Ohms law

Answer 11

That the current through a metal wires is directly proportional to the voltage across it as long as temp and physical conditions remain constant