This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
You're on a roll — SECTION 1: Questions 1 - 35 1. Which of the following pairs of instruments are null instruments? A. Ammeter and voltmeter B. The charge selector and triple beam balance C. Potentiometer and centre - zero galvanometer D. The Wheatstone bridge circuit and the spring balance A null instrument* is one that measures a quantity by balancing it against a known quantity, indicating a zero (null) deflection when balanced. A potentiometer is a null instrument used to measure potential differences. It relies on a centre-zero galvanometer to detect the null point (zero current). A Wheatstone bridge is also a null instrument used