Home > Electronic Tutorials > Formulas used in Electronics > Voltmeter Multiplier Calculation Formula

Electronic Formulas / Formulae

Voltmeter Multiplier Formula Calculation

The resistance RS to be connected in series with a voltmeter of full scale voltage VV and full scale current drain IV to increase the full scale voltage to V is:

RS = (V - VV) / IV

The power P dissipated by the resistance RS with voltage drop (V - VV) carrying current IV is:

P = (V - VV)2 / RS = (V - VV)IV = IV2RS

Note: To report broken links or to submit your projects please send email to Webmaster