Deck 2: Series Circuits, Ohms Law, Energy, and Power

Question 1

If 6.8 k?, 1.2 k? and 5.6 k? resistors are wired in series, the total resistance is 13.6 k?.

Answer 1

True

Question 2

If 4.7 k?, 2.2 k? and 1.2 k? resistors are wired in series, the total resistance is 8.7 k?.

Answer 2

False

Question 3

Figure 4-1

-Calculate V_R3 in Figure 4-1 if V_T = 50 V, V_R1 = 19.7 V and V_R2 = 2.7 V.

A) 27.6 V
B) 22.4 V
C) 30.3 V
D) 47.3 V

Answer 3

27.6 V

Question 4

Figure 4-1

-How much voltage is dropped across R₂ and R₃ in Figure 4-1 if R₁ = 4.7 k?, V_R1 = 10 V, R₂ = 4.7 k? and R₃ = 4.7 k??

A) V_R2 = 10 V, V_R3 = 4.7 V
B) V_R2 = 10 V, V_R3 = 10 V
C) V_R2 = 14.7 V, V_R3 = 14.7 V
D) V_R2 = 4.7 V, V_R3 = 10 V

Question 5

In a series circuit, total power P_T is calculated as:

A) P₁ + P₂ + P₃ + etc.
B) P₁ ÷ P₂ ÷ P₃ ÷ etc.
C) 1/P₁ + 1/P₂ + 1/P₃ + etc.
D) P₁ × P₂ × P₃ × etc.

Question 6

If a circuit's resistance increases, its current decreases.

Question 7

A 250 ?A current flowing through a 4.7 k? resistor produces a ________ voltage drop.

A) 1.18 V
B) 1.18 mV
C) 53.2 V
D) 18.8 V