Question

A circuit is given with R=200Ω, Voltage = 3V, what will be the current?

Answer 1

To calculate the current in a circuit, you can use Ohm's law, which states that the current flowing through a conductor between two points is directly proportional to the voltage and inversely proportional to the resistance. The formula for Ohm's law is:

$I = \frac{V}{R}$

Where I is the current in amperes (A), V is the voltage in volts (V), and R is the resistance in ohms (Ω).

Using the given values of R=200 ohm and V=3V, we can calculate the current as:

$I = \frac{3V}{200\text{ ohm}} = 0.015 A\text{ or }15 mA\text{ (milliamperes)}$

Therefore, the current in the circuit is 0.015 A or 15 mA.