**Resistance**(

**R**) is a property of a material used for describing the opposition provided to the flow of current. It is measurable and is in contrast to the conductance property of a material, or the ease of electron flow through the substance.

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Accordingly, what is the resistance R in the figure?

The actual value of **resistance R**, shown in the **figure** is `30 Omega`.

Secondly, what is resistance and its unit? **Resistance** is the hindrance offered by an object to the flow of current through it. SI **unit** of **resistance** is Ohm (Ω). It is **resistance** offered by an object when 1 volt potential difference is applied across it and 1 Ampere of current passes through it.

Regarding this, what is the simple definition of resistance?

**Resistance** is an electrical quantity that measures how the device or material reduces the electric current flow through it. The **resistance** is measured in units of ohms (Ω). If we make an analogy to water flow in pipes, the **resistance** is bigger when the pipe is thinner, so the water flow is decreased.

What is I in Ohm’s law?

A **law** relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current. Mathematically, the **law** states that V = IR, where V is the voltage difference, I is the current in amperes, and R is the resistance in ohms.

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What are the EMF and internal resistance of the battery?

**Internal Resistance**. The electromotive force (e) or

**e.m.f.**is the energy provided by a cell or

**battery**per coulomb of charge passing through it, it is measured in volts (V). It is equal to the potential difference across the terminals of the cell when no current is flowing.

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What is Ohm’s law in electricity?

**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.

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What is an example of resistance?

**Resistance**is defined as a refusal to give in or to something that slows down or prevents something. An

**example of resistance**is a child fighting against her kidnapper. An

**example of resistance**is wind against the wings of a plane.

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How is resistance formed?

**resistance**is offered to the flow of current.

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Is resistance an adjective?

**adjective**for

**resistance**? Included below are past participle and present participle forms for the verb resist which may be used as

**adjectives**within certain contexts.

**resistant**. Which makes

**resistance**or offers opposition.

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What are the laws of resistance?

**laws of resistance**states that the

**Resistance**“R” offered by a conductor depends upon following factors: The

**resistance**of conductor is the obstruction posed by the conductor to the flow of current through it. The

**Resistance**“R” is dependent on the Nature of the material.

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What is the difference between ohms and continuity?

**Ohms**/

**Continuity**Basics. An Ohmmeter is used to measure the resistance to electrical flow

**between**two points. In other words,

**continuity**means low or zero

**ohms**and no

**continuity**means very high or infinite

**ohms**. Don’t get the terms zero

**ohms**and infinite

**ohms**confused, they mean opposite things.

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Why resistance is important?

**Resistance**is also good because it gives us a way to shield ourselves from the harmful energy of electricity.

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What is the SI unit of current?

**SI unit of current**. ANSWER.

**SI unit of current**is ampere. 1 ampere is the constant

**current**that will produce an attractive force of 2 × 10

^{−}

^{7}Newton per meter of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one meter apart in a vacuum.

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What is the unit of current?

**unit**of electric

**current**is the ampere, which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base

**unit**Electric

**current**is measured using a device called an ammeter.

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What is the unit of voltage?

**unit of voltage**or potential difference (symbol: V). One Volt is defined as energy consumption of one joule per electric charge of one coulomb.

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What are the 3 forms of Ohm’s law?

**Ohm’s law**

- Alternating current.
- Capacitance.
- Direct current.
- Electric current.
- Electric potential.
- Electromotive force.
- Impedance.
- Inductance.

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Why is Ohm’s law important?

**Ohm’s law**is vitally

**important**to describing electric circuits because it relates the voltage to the current, with the resistance value moderating the relationship between the two.

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What is current and voltage?

**Current**is the rate at which electric charge flows past a point in a circuit. In other words,

**current**is the rate of flow of electric charge.

**Voltage**, also called electromotive force, is the potential difference in charge between two points in an electrical field.

**Voltage**is the cause and

**current**is its effect.

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What are ohms used for?

**Ohms**are also

**used, when**multiplied by imaginary numbers, to denote reactance in alternating-current ( AC ) and radio-frequency ( RF ) applications.