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A potentiometer wire has length 4m resistance 8Ω. The resistance that must be connected in series with the wire and an accumulator of emf 2V, so as to get a potential gradientof 1mV per cm on the wire is
Options
(a) 32Ω
(b) 40Ω
(c) 44Ω
(d) 48Ω
Correct Answer:
32Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The wavelength of kα, X-rays produced by an X-ray tube 0.76Å. The atomic number
- The de-Broglie wavelength of an electron in the first Bohr orbit is
- The ratio of speed of an electron in ground state in Bohr’s first orbit of hydrogen atom
- The electric field associated with an e.m. wave in vacuum is given by
- A wire is suspended vertically from one of its ends is stretched by attaching a weight
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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