Induction coil is an instrument based on the principle of

Statement 1: Both dc and ac can be measured by a hot wire instrument. Statement 2: the hot wire instrument is based on the principle of magnetic effect of current.

Statement 1: Both dc and ac can be measured by a hot wire instrument. Statement 2: the hot wire instrument is based on the principle of magnetic effect of current.

A moving coil type of galvanometer is based upon the principle that

A circuit diagram of an instrument is given below. . Identify the instrument and state the principle of this instrument