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JEE Main · 2019 · 08 Apr 2019 · Shift 1 · Current Electricity

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A resistor has a certain color code. If one replaces the red color by green in the code, the new resistance will be:
  1. (A)✓ Correct
  2. (B)
  3. (C)
  4. (D)

Answer: (A)

Solution

The resistor carries the colour code Red-Black-Brown, standing for the digits and a multiplier of . The first band, red, is the digit ; replacing it with green changes that digit to , so the code becomes Green-Black-Brown, reading .

JEE Main · 2019 · 08 Apr 2019 · Shift 1 · Single correct option

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