Three resistors with magnitudes 2, 4 and 8 ohm are connected in parallel. The equivalent resistance of the system would be

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Q: 44 (NDA-I/2016)
Three resistors with magnitudes 2, 4 and 8 ohm are connected in parallel. The equivalent resistance of the system would be

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,21,16,21,7,3,6

keywords: 

{'equivalent resistance': [0, 0, 0, 3], 'resistors': [0, 0, 0, 1], 'parallel': [0, 1, 3, 5], 'magnitudes': [0, 0, 0, 2], 'system': [8, 3, 7, 23]}

When resistors are connected in parallel, the total resistance of the system is less than the smallest individual resistor. In this case, the smallest resistor has a resistance of 2 ohms.

Option 1: less than 2 ohm - This option is correct. The equivalent resistance of the system is indeed less than 2 ohms because the resistors are connected in parallel.

Option 2: more than 2 ohm but less than 4 ohm - This option is not correct. The equivalent resistance is smaller than the smallest resistor, which is 2 ohms.

Option 3: 4 ohm - This option is not correct. The equivalent resistance is smaller than 4 ohms.

Option 4: 14 ohm - This option is not correct. The equivalent resistance is much smaller than 14 ohms.

Thus, the correct answer is option 1: less than 2 ohm. The equivalent resistance of the system is less than 2 ohms because the resistors are connected in parallel.

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