## When the resistance in a current remains constant How are the voltage and current related?

Terms in this set (16)

**Resistance** in a circuit is equal to **voltage** divided by **current**. If the **resistance** in a circuit **remains constant**, a change in **current** is directly proportional to a change in **voltage**.

## When the resistance in a circuit remains constant How are the voltage and current related Brainly?

If **resistance** is **constant** in a **circuit**, more EMF will produce more **current** and less EMF will result in less **current**, or **voltage and current** are directly proportional.

## What will happen to the current in a circuit of constant resistance if the voltage is doubled?

So **doubling** or tripling the **voltage will** cause the **current** to be **doubled** or tripled. On the other hand, any alteration in the **resistance will** result in the opposite or inverse alteration of the **current**. So **doubling** or tripling the **resistance will** cause the **current** to be one-half or one-third the original value.

## What happens when resistance is constant?

For a circuit with a **constant resistance**, the current increases as the voltage increases.

## Are resistance and current directly proportional?

In the first version of the formula, I = V/R, Ohm’s Law tells us that the electrical **current** in a circuit can be calculated by dividing the voltage by the **resistance**. In other words, the **current is directly proportional** to the voltage and **inversely proportional** to the **resistance**.

## What happens to current when resistance increases?

The **current** is directly proportional to the voltage and inversely proportional to the **resistance**. This means that increasing the voltage will cause the **current** to **increase**, while increasing the **resistance** will cause the **current** to decrease.

## What is the resistance in the circuit?

**Resistance** is a measure of the opposition to current flow in an electrical **circuit**. **Resistance** is measured in ohms, symbolized by the Greek letter omega (Ω). Conductors: Materials that offer very little **resistance** where electrons can move easily.

## What is the resistance of a light bulb?

The typical cold resistance of a 100 W incandescent lamp is about 9.5 **ohms**. If that resistance stayed the same with 120 V applied, Ohm’s Law tells us that the bulb would draw about 12.5 amps and dissipate about 1,500 watts.

## Which statement describes the relationship of resistance and current?

**Which statement describes the relationship of resistance and current**? **Resistance** is inversely proportional to **current** because R = V/I.

## What happens to resistance if area is doubled?

From the equation, we understand that **resistance** is directly proportional to the length of the conductor and inversely proportional to the crossectional **area** of the conductor. **Doubling** the length **doubles** the **resistance**.

## Why does voltage increase as resistance increases?

As long as the power supply stays constant when **resistance** is added **voltage** will **increase**. I guess because when **resistance** is high the electrons need higher potential energy higher electromotive to make the electrons try to pass and complete the circuit.

## What happens to the current in a circuit if the resistance triples?

Since **current** is inversely proportional to **resistance** and directly proportional to voltage, on tripling **resistance**, it becomes 1/3rd and on tripling voltage it also **triples**.

## Does Resistance stay constant?

In order for a material to obey Ohm’s law the **resistance** must **remain constant** – meaning that the current and potential difference must be proportional to each other. = potential difference (measured in volts) R. = the circuit **resistance** (measured in ohms) – which remains **constant** in order to obey Ohm’s law.

## Does resistance affect voltage?

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). Similarly, increasing the **resistance** of the circuit will lower the current flow if the **voltage** is not changed.

## Do you expect the resistance of a light bulb to remain constant?

A non- Ohmic device is one that **does** not have a **constant resistance**. A **light bulb** is a simple example; the filament undergoes huge changes in temperature when current passes through it. Therefore, the **resistance** of the filament is not **constant**, rather, it increases with increased current.