A galvanometer may be converted into ammeter or a voltmeter. Resistance of the device so obtained will be the largest in the case of

Question

A galvanometer may be converted into ammeter or a voltmeter. Resistance of the device so obtained will be the largest in the case of (A) Ammeter of range 1A (B) Ammeter of range 10A (C) Voltmeter of range 1V (D) Voltmeter of range 10V

Tardigrade Admin · Accepted Answer

R= (V/Ig) - G Thus, R is large when V is large.

Q. A galvanometer may be converted into ammeter or a voltmeter. Resistance of the device so obtained will be the largest in the case of

Ammeter of range 1A

Ammeter of range 10A

Voltmeter of range 1V

Voltmeter of range 10V

$R = \frac{V}{I _{g}} - G$
Thus, R is large when V is large.

Q. A galvanometer may be converted into ammeter or a voltmeter. Resistance of the device so obtained will be the largest in the case of

Ammeter of range 1A

Ammeter of range 10A

Voltmeter of range 1V

Voltmeter of range 10V

R=Ig​V​−G Thus, R is large when V is large.

$R = \frac{V}{I _{g}} - G$
Thus, R is large when V is large.