GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A circuit has a current of 1.2 A. If the voltage decreases to one-third of its original amount while the resistance remains constant, what will be the resulting current?
A
0.3 A
B
0.4 A
C
1.2 A
D
3.6 A
Explanation: 

Detailed explanation-1: -The relationship between Voltage, Current and Resistance forms the basis of Ohm’s law. In a linear circuit of fixed resistance, if we increase the voltage, the current goes up, and similarly, if we decrease the voltage, the current goes down.

Detailed explanation-2: -R is the resistance: according to oslo, when the resistance is held, constant and the voltage is reduced by 1 half, then the current will also be reduced to 1 half of the initial value we can show this using equation.

Detailed explanation-3: -Ohm’s law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R). Therefore, if the voltage is increased, the current will increase provided the resistance of the circuit does not change.

There is 1 question to complete.