electricity

Question 1

what’s electric current

Answer 1

flow of charge carrier

Question 2

equation of Q

Answer 2

Q = I * t

Question 3

equation of I

Answer 3

I = Anvq
I=current
A=cross sectional area
v=drift speed
n=density of charge carrier
q=charge per charge carrier

Question 4

equation of V in W

Answer 4

V = W/Q

Question 5

equation of V in I

Answer 5

V=IR

Question 6

equation of P

Answer 6

P= W/t = VI = I^2R

Question 7

define resistance

Answer 7

voltage divided by current/opposition to current

Question 8

equation of R

Answer 8

ρ = RA/L

Question 9

LDR how to change

Answer 9

resistanfe decrease as light intensity decrease

Question 10

thermistor how change

Answer 10

resistance decr as temp incr