# What is the resistance of a circuit with voltage 40 V and current 8 A?

R=408 = 5 Ω

## What is the current if the resistance is 48 ohms and the voltage is 12 volts?

AC Ohm’s law calculator

Impedance (Z):
Ω kΩ MΩ
Current (I):
μA mA A kA MA
Voltage (V):

What is current resistance and voltage?

Voltage is the difference in charge between two points. Current is the rate at which charge is flowing. Resistance is a material’s tendency to resist the flow of charge (current).

### What is current divided by voltage?

One way Ohm’s Law can be stated is: “a current flowing through a conductor is directly proportional to the voltage, given the temperature of the conductor remains constant”. Putting these into words Ohm’s Law states that: Voltage equals resistance multiplied by current. Resistance equals voltage divided by current.

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### What is the relationship between current I and voltage V?

The current I in amps (A) is equal to the power P in watts (W) divided by the voltage V in volts (V): The current I in amps (A) is equal to the square root of the power P in watts (W) divided by the resistance R in ohms (Ω): The voltage V in volts (V) is equal to the current I in amps (A) times the resistance R in ohms (Ω):

What is the relation between voltage and Ohm Resistance?

The resistance R in ohms (Ω) is equal to the voltage V in volts (V) divided by the current I in amps (A): The resistance R in ohms (Ω) is equal to the squared voltage V in volts (V) divided by the power P in watts (W): The resistance R in ohms (Ω) is equal to the power P in watts (W) divided by the squared current I in amps (A):

## How do you calculate current from voltage and resistance?

You can calculate current using the given formula! Current Formula: [Current (I) = Voltage (V) ÷ Resistance (R) ] I (amps) = V (volts) ÷ R (Ω) For Example: Find the current flowing through a 3 Ω resistor when a potential difference of 30 V is applied across it.

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## What is the Ohm’s law of current?

The Bavarian physicist Georg Simon Ohm derived a formula in which the resistor’ current (I) in amps (A) = (is equal) to the resistor’s voltage (V) in volts divided by the resistance R in ohms (Ω): Ohm’s law formula is stated as: Current (I) = (Voltage,(V))/(Resistance,(R)) in Amperes, (A)