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JEE Main202127 Aug 2021Evening ShiftPhysicsCurrent ElectricityActual

The colour coding on a carbon resistor is shown in the given figure. The resistance value of the given resistor is:

Options

  1. A( 7500 ± 375 ) Ω
  2. B( 5700 ± 285 ) Ω
  3. C( 7500 ± 755 ) Ω
  4. D( 5700 ± 375 ) Ω

Correct answer

A. ( 7500 ± 375 ) Ω

Step-by-step solution

Colour Letter as an aid to memory Number Multiplier Colour Tolerance Black B 0 10 0 Gold 5 % Brown B 1 10 1 Silver 10 % Red R 2 10 2 No fourth band 20 % Orange O 3 10 3 Yellow Y 4 10 4 Green G 5 10 5 Blue B 6 10 6 Violet V 7 10 7 Grey G 8 10 8 White W 9 10 9 A set of coloured co-axial rings or bands is printed on the resistor which reveals the following facts : 1 . The first band indicates the first significant figure. 2 . The second band indicates the second significant figure. 3 . The third band indicates the pow

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