Everything Science Grade 10

CHAPTER 17. ELECTRIC CIRCUITS 17.3

electron is 1 , 6 × 10 −^19 C.

Step 2:Apply the principles: determine the charge

We know that each electron carries a charge of 1 , 6 × 10 −^19 C, therefore

the total charge is:

Q = 95× 1 , 6 × 10 −^19 C

= 1, 52 × 10 −^17 C

Step 3:Apply the principles: determine the charge

We know that:

I = ∆Qt

I =^1 ,^52 ×^10

− (^17) C
101 s
I =^1 ,^52 ×^10
− (^17) C
1 ×

1

101 s

I =^1 ,^52 ×^10

− (^17) C
1 ×

10

1 s

I = 1, 52 × 10 −^16 C·s−^1

I = 1, 52 × 10 −^16 A

Step 4:Quote the final result

The current is 1 , 52 × 10 −^16 A.

Resistance ESAFG

Resistance is a measure of "how hard" it is to "push" electricity through a circuit element.

Resistance can also apply to an entire circuit. See video: VPfvk at http://www.everythingscience.co.za

Physics: Electricity and Magnetism 287