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A steady current of 1.5 amp flows through a copper voltmeter for 10 minutes. If the electrochemical equivalent of copper is 30 x 10⁻⁵ g coulomb⁻¹, the mass of copper deposited on the electrode will be
Options
(a) 0.50 g
(b) 0.67 g
(c) 0.27 g
(d) 0.40 g
Correct Answer:
0.27 g
Explanation:
We have, m = ZIt where, Z is thr electrochemical equivalent of copper.
m = 30 x 10⁻⁵ x 1.5 x 10 x 60
= 0.27 gm.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
- A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
- An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
- An isolated sphere has a capacitance of 50pF. What would be the radius of the sphere?
- A gaussian sphere encloses an electric dipole within it. The total flux
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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