A galvanometer with a coil resistance of 15 Ω gives full-scale deflection when a current of 5 mA passes through it. What resistance must be connected in series with the galvanometer to convert it into a voltmeter reading 0 to 10 V?

PhysicsMediumHigh School (11–12)jee-main

To convert a galvanometer into a voltmeter, a high resistance $R$ is connected in series so that at full-scale deflection the current through the galvanometer is $I_g$ when the total voltage across the series combination equals the desired range: $V = I_g(G+R)$ .

A galvanometer with a coil resistance of $15\,\Omega$ gives full-scale deflection when a current of $5\,mA$ passes through it. What resistance must be connected in series with the galvanometer to convert it into a voltmeter reading $0$ to $10\,V$ ?

← All Quizzes

← The cyclotron (gyration) frequency of an electron moving in a uniform magnetic field of 1 T is approximately A current I flows through an infinitely long conductor whose cross-section is a semicircular ring of radius R. What is the magnitude of the magnetic field along the axis of this conductor? →

More onjee-main

Discussion (0)

Loading…