Question

When 26 u battery
is connected acros on unknown ristor
there is a current of 2.5mA Find the value of resistor ​

Answer 1

Answer

• Value of resistor is 25,400 Ω

Given

• 26 V battery  is connected across on unknown resistor  there is a current of 2.5 mA

To Find

• Value of resistor

Concept Used

We need to apply Ohm's law

$\bf \;\;\; \bullet \;\; V=IR$

where ,

V denotes potential difference

I denotes current

R denotes resistance

Solution

Potential Difference , V = 26 V

Current , I = 2.5 mA = 2.5 × 10⁻³ A

Value of resistor , R = ? Ω

Apply Ohm's law .

$\implies \rm V=IR\\\\\implies \rm 26=(2.5 \times 10^{-3}) R\\\\\implies \rm 26000=2.5R\\\\\implies \rm R=10,400\ \Omega$

Answer 2

▪️Given -

• 26 Volt (Potential Difference)

• Current Flown Across Circuit / Resistor is 2.5A

▪️To Find -

Value of Resistor used in Circuit

▪️Solution -

Formula Used here is Ohm's Law.

☆ V = IR

Here,

V = Voltage (Potential Difference)

I = Current

R = Resistance in Resistor

Placing Values & Making Changes according to given Question,

V = 26V

I = 2.5 Ampere = 2.5 × 10^3

Now, Let's Apply Those values in Ohm's Formula,

➯ V = IR

➯ 26 = 2.5 × 10^3 × R

➯ 2.5 R = 26 × 10^3

➯ 2.5 R = 26,000

➯ R = 26,000 / 2.5

➯ R = 10,400

⛬ Value of Resistor is 10,400 Resistance.