What happens to the current in the resistor when the voltage is doubled and the resistance remains the same?

The current is directly proportional to the voltage and inversely proportional to the resistance. So doubling or tripling the voltage will cause the current to be doubled or tripled.

What is the effect on current in a circuit if both the voltage and the resistance are doubled if both are halved explain?

i. Inew = 6 mA (Current is directly proportional to voltage; a halving of the voltage will halve the current. But current is also inversely proportional to the resistance; a doubling of the resistance will halve the current.

What happens to the current in a series circuit if the voltage is increased and the resistance stays the same?

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.

When you double both the current and voltage in a circuit the power?

As such when both the current and voltage in a circuit are doubled, resistance becomes R=2V2I=VI and hence remains same. However, power becomes P=2V⋅2! −4V⋅I i.e. power becomes four times.

When voltage across a resistor is doubled the current will?

This is equivalent to I=2(VR) . Therefore, we can see that if the voltage doubles, the current also doubles for the same resistance.

When we double the voltage in simple electric circuit we double the?

∴ Current also doubles.

When you double the voltage in a circuit you double the?

Originally Answered: When we double voltage in a simple circuit does power and current doubles? In a purely resistive circuit if you double the voltage the current will also double. The power is the product of voltage times current. If both double then the power is 4 times greater.

When we double the voltage in a simple circuit we double the?

What happens to the resistance when current and voltage are doubled?

Resistance remains same, but power becomes four times i.e. quadruples. If current is I and voltage is V, then resistance R = V I and power is given by P = V ⋅ I. As such when both the current and voltage in a circuit are doubled, resistance becomes R = 2V 2I = V I and hence remains same.

Why does power vary with the square of the voltage?

So power varies with the square of the voltage. In the simplest circuit, a resistor load, doubling the applied voltage will double the current and quadruple the power. This is because power is the product of both voltage and current, both of which doubled. You double the current by doubling the voltage.

What happens when voltage is varied within permissible range?

When voltage is varied within this range, power losses vary, but output power power remains almost same. If supply voltage varies beyond permissible range (variation more than approximately +/- 10\%), current drawn by the motor may exceed the rated current, resulting in tripping of the overload relay

What is a simple circuit with a single voltage source?

Forgetting the “simple” word in your question (what is a “simple circuit”?), it is like this for a general circuit: if the circuit is linear, and you have a single independent voltage source, doubling this voltage source will double the current and quadruple the power.