19 dc circuits

Question 1

Formula of series circuit

Answer 1

i1=i2=i3
v1+v2

Question 2

parallel circuit

Answer 2

i1=i2+i3
v1=v2=v3

Question 3

formula of resistance

Answer 3

r=v/i

Question 4

Formula of voltage output

Answer 4

( r2/r1+r2)xV

Question 5

What is a potentiometer and its uses

Answer 5

variable potential divider
makes use of voltage drop across resistor to divide voltage

Question 6

what is dc circuit

Answer 6

current flow in one direction and voltage is low

Question 7

What is ac circuit

Answer 7

alternating current

Question 8

What are transducers

Answer 8

convert energy from one form to another

Question 9

examples of transducers

Answer 9

thermosister light dependant resistor

Question 10

function of ldr

Answer 10

as light intensity inc, res decreases