If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 60 v, the current flowing through the circuit is

a. 0.2 a.
b. 720 a.
c. 5 a.
d. 60 a.

Answer

The current of the circuit is 5 A.

Option (C) is correct .

Explanation :

The relationship between the current , voltage and resistance is given by .

Where I is current , V is voltage and R is resistance .

As given

If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 60 V .

R = 12 ohms

V = 60 V

Putting the values

I = 5 A

Therefore the current of the circuit is 5 A .

Option (C) is correct .

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

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