Question

An electric device is connected across a supply of
230 V. If the resistance of the device is 100 Ω
calculate current through it.​

Answer 1

$\Huge{\underline{\underline{\blue{\mathfrak{Question :}}}}}$

An electrical device is connected across a supply of 230 V. If resistance of the device is 100 Ω .Calculate Current through it.

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$\Huge{\underline{\underline{\blue{\mathfrak{Answer :}}}}}$

We are Given,

Potential Difference (V) = 230 V

Resistance (R) = 100 Ω

So, we have to find current (I) through the circuit.

For this we have formula :

$\LARGE{\underline{\boxed{\tt{V \: = \: IR}}}}$

→ I = V/R

→ I = 230/100

→ I = 2.3

$\Large{\boxed{\red{\sf{Current \: (I) \: = \: 2.3 \: A}}}}$

Where A is Ampere, which is a S.I unit for measuring value of current.

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$\LARGE{\underline{\underline{\sf{Important \: Formulas}}}}$

(i) V = IR

(ii) I = Q/t

(iii) V = W/Q

(iv) P = VI

(v) H = VIt

Where,

• V is Potential Difference
• I is Current
• R is Resistance
• Q is Charge
• W is Work Done
• H is Heat Energy
• t is Time