What will happen to the voltage if the current is doubled?

The current is directly proportional to the voltage and inversely proportional to the resistance. Any alteration in the voltage will result in the same alteration of the current. So doubling or tripling the resistance will cause the current to be one-half or one-third the original value.

When the current in the circuit is doubled the power also 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. In a purely resistive circuit, VA and watts are the same.

What is the relationship between current and voltage?

The relationship between voltage, current, and resistance is described by Ohm’s law. This equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r.

What happens to the electrical energy used to light a light bulb?

In the light bulb, the flow of charge through the filament heats it up and causes it to glow. In this way, the light bulb converts electrical energy to heat energy and light energy. 1, chemical potential energy is converted to electrical energy, which is immediately converted to light energy and heat energy.

Is the amount of charge in a bulb equal to current?

FALSE – Charge is neither created nor destroyed, and as such, the amount of charge which enters a light bulb in a second is equal to the amount of charge which exits the light bulb in a second. This quantity (charge per second) is the current and it is everywhere the same in a circuit.

Why is the electric field of a point charge not uniform?

An electric field is called uniform if its strength does not change with distance. The electric field of a point charge is not uniform, because it strongly weakens when distance from the charge increases. It weakens proportional to (1/r 2) and its field lines diverge or open up very quickly in space.

What is the formula for Coulomb’s law?

Coulomb’s Law: F = ( kq1q2) / r2 , where k = 8.99x109Nm2/C2. For simplicity in calculations, we may often show 9x109instead of 8.99×109.

What is the relationship between electric charge and electric flux?

Electric Flux and Enclosed Charge: -There is a connection between sign of net charge enclosed by a closed surface and the direction of electric flux through surface (inward for -q, outward for +q). – There is a connection between magnitude of net enclosed charge and strength of net “flow” of E.