# What is instantaneous power in physics?

Table of Contents

## What is instantaneous power in physics?

Instantaneous power is the power measured at a given instant in time.

## What is the equation for instantaneous power?

The amount of power in a circuit at any instant of time is called the instantaneous power and is given by the well-known relationship of power equals volts times amps (P = V*I).

**What is instantaneous power and average power?**

The instantaneous power is the power at a given instant. The average power is the power averaged over a cycle or number of cycles. The average ac current delivered to a circuit is zero. Despite this, power is dissipated in the circuit.

**What is instantaneous power in AC circuit?**

The instantaneous power in an AC circuit is defined as the product of instantaneous voltage (v) across the element and instantaneous current (i) through the element and is denoted by lower case letter p. Instantaneous Power, p=v×i.

### How do you find instantaneous power and average power?

Instantaneous Power As in DC circuits, the instantaneous electric power in an AC circuit is given by P=VI where V and I are the instantaneous voltage and current. the power becomes: Averaging this power over a complete cycle gives the average power.

### How do you find the instantaneous power frequency?

The frequency of the instantaneous power is twice the frequency of the current or voltage. This depiction also follows from the second two terms on the right side of Eq. 1.8. This means that the instantaneous power goes through two complete cycles for every cycle of either the current or the voltage.

**What is the instantaneous velocity?**

Instantaneous velocity is defined as the rate of change of position for a time interval which is very small (almost zero). Measured using SI unit m/s. Instantaneous speed is the magnitude of the instantaneous velocity. It has the same value as that of instantaneous velocity but does not have any direction.

**What is instantaneous acceleration in physics?**

Instantaneous acceleration a(t) is a continuous function of time and gives the acceleration at any specific time during the motion. It is calculated from the derivative of the velocity function. Instantaneous acceleration is the slope of the velocity-versus-time graph.

## How do you calculate instantaneous rate?

An instantaneous rate is a differential rate: -d[reactant]/dt or d[product]/dt. We determine an instantaneous rate at time t: by calculating the negative of the slope of the curve of concentration of a reactant versus time at time t.

## What is instantaneous power in AC?

**Is instantaneous power the same as complex power?**

It is the product of the time functions of the voltage and current. This definition of instantaneous power is valid for signals of any waveform. The unit for instantaneous power is VA. Complex power is the product of the complex effective voltage and the complex effective conjugate current.

**Is instantaneous velocity acceleration?**

In simple terms, the velocity tells how fast the position is changing whereas the acceleration tells us how fast the velocity is changing. Instantaneous velocity is the derivative of displacement wrt to time. It is not simply defined as ratio of change in position over time period.

### What is instantaneous rate reaction?

Rate of change of concentration of any of the reactants or products at a particular instant of time is called the instantaneous rate of reaction, for that particular reaction at that instant of time.

### What is instantaneous reaction with example?

Instantaneous reactions are those which proceed with a very fast speed NaOH+HCl→NaCl+H2O is an strong acid strong base reaction and proceeds instantaneously.