Prob. 3 A moving coil meter movement has the characteristics an internal resistance of 500 ohms and will deflect full-scale with a current of 20 mA current passing through it. a). Use this meter movement to make a dc voltmeter that can measure from 0-50v and draw its circuit b).Use it again to make a dc ammeter that can measure from 0-250 mA and draw its circuit. Prob. 4 A wheatstone bridge is supplied with a 10v battery. The upper (left-right) resistors are 100 and 1,000 ohms, respectively. The lower resistors (left-right) are the magnet wire whose resistance is being determined and the variable resistance, respectively. The bridge is balanced when variable resistance reads 423 ohms. a). What is the resistance of the magnet wire?

Prob. 3 A moving coil meter movement has the characteristics an internal resistance of 500 ohms and will deflect full-scale with a current of 20 mA current passing through it. a). Use this meter movement to make a dc voltmeter that can measure from 0-50v and draw its circuit b).Use it again to make a dc ammeter that can measure from 0-250 mA and draw its circuit. Prob. 4 A wheatstone bridge is supplied with a 10v battery. The upper (left-right) resistors are 100 and 1,000 ohms, respectively. The lower resistors (left-right) are the magnet wire whose resistance is being determined and the variable resistance, respectively. The bridge is balanced when variable resistance reads 423 ohms. a). What is the resistance of the magnet wire? Prob. 3 A moving coil meter movement has the characteristics an internal resistance of 500 ohms and will deflect full-scale with a current of 20 mA current passing through it. a). Use this meter movement to make a dc voltmeter that can measure from 0-50v and draw its circuit b). Use it again to make a dc ammeter that can measure from 0-250 mA and draw its circuit. Prob. 4 A wheatstone bridge is supplied with a 10v battery. The upper (left-right) resistors are 100 and 1,000 ohms, respectively. The lower resistors (left-right) are the magnet wire whose resistance is being determined and the variable resistance, respectively. The bridge is balanced when variable resistance reads 423 ohms. a). What is the resistance of the magnet wire?