18) D.C. Circuits

Question 1

What is this symbol?

Answer 1

cell

Question 2

What is this symbol?

Answer 2

fixed resistor

Question 3

What is this symbol?

Answer 3

variable resistor / rheostat

Question 4

What is this symbol?

Answer 4

ammeter

Question 5

What is this symbol?

Answer 5

voltmeter

Question 6

What is this symbol?

Answer 6

switch (open)

Question 7

What is this symbol?

Answer 7

fuse

Question 8

What is this symbol?

Answer 8

bulb

Question 9

What is this symbol?

Answer 9

a.c. supply (alternating current supply)

Question 10

What is the relationship between the V₁, V₂ and V₃ in a parallel circuit?

Answer 10

V₁ = V₂ = V₃

Question 11

What is the relationship between the V₁, V₂ and V₃ in a series circuit?

Answer 11

V₁ +V₂ = V₃

Question 12

What is the relationship between the I₁, I₂ , I₃ and I_{<span>4 </span>}in a parallel circuit?

Answer 12

I₁ = I₂ + I₃ = I_{<span>4</span>}

Question 13

What is the relationship between the I₁, I₂ and I₃ in a series circuit?

Answer 13

I₁ = I₂ = I₃

Question 14

What is the formula for total resistance of resistors connected in parallel?

Answer 14

Question 15

What is the formula for total resistance of resistors connected in series?

Answer 15

R_T = R₁ + R₂ + R₃