A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire

A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire. A standard cell of emf 1.02 V is balanced by 50 cm. The ammeter shows a reading of 1.5A. Then, the error in ammeter reading is

Options

(a) 0.03A
(b) 3A
(c) 1.3A
(d) 0.3A

Correct Answer:

0.03A

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. In a circuit, L,C and R are connected in series with an alternating voltage source
  2. Two thin lenses when placed in contact, then the power of combination is +10 D.
  3. A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
  4. Which one of the following is not due to total internal reflection?
  5. Velocities of sound measured in hydrogen and oxygen gas at a given temperature