Question

Calculate the current in the circuit when three resistors of 10 ohms each are connected in series to a battery of 30V.​

Answer 1

✤ ᴀɴꜱᴡᴇʀ:-

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• Current of the circuit is 1A

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✤ꜰᴏʀᴍᴜʟᴀ ᴛᴏ ʙᴇ ᴜꜱᴇᴅ:-

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• V/I = R

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✤ɢɪᴠᴇɴ:-

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• Potential difference, V = 30V

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✤ꜱᴏʟᴜᴛɪᴏɴ :-

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There are 3 resistors of 10 ohm each

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Total resistance ➡

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$\bf{R = 10 + 10 + 10 \: ohm }$

$\bf{R = 30 \: ohm}$

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• Potential difference, V = 30V
• Resistance, R = 30 ohms
• Current = ?

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$\bf \implies \frac{v}{i} = r$

$\bf \implies i \: = \frac{v}{r}$

$\bf \implies current = 30 \div 30$

$\bf \implies{current = 1a}$

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Therefore, Current of the circuit is 1A.