ELECTRIC CURRENT SOURCES
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ELECTRIC CURRENT SOURCES Voltaic Elements a. A glass jar that contains H 2 SO 4 solution b. Plate of platinum as a positive electrode (cathode) c. Plate of Zinc (Zn) as a negative electrode (Anode) The chemical reactions causes electrons from Zinc plate to flow to the platinum plate. So, if a bulb connected to these two poles, it will turn on
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ELECTRIC CURRENT SOURCES. Voltaic Elements. A glass jar that contains H 2 SO 4 solution Plate of platinum as a positive electrode (cathode) Plate of Zinc (Zn) as a negative electrode (Anode) - PowerPoint PPT Presentation
Transcript of ELECTRIC CURRENT SOURCES
ELECTRIC CURRENT SOURCES
Voltaic Elements
a. A glass jar that contains H2SO4 solutionb. Plate of platinum as a positive electrode (cathode)c. Plate of Zinc (Zn) as a negative electrode (Anode) The chemical reactions causes electrons from Zinc plate to flow to the platinum
plate. So, if a bulb connected to these two poles, it will turn on
(H2SO4)
measuring ELECTRIC CURRENT
An ammeter is an instrument used to mesure current that passes through a node or another part of a circuit.An ammeter to measure current is always connected in series in a circuit
MEASURING POTENTIAL DIFFERENCE
Voltmeter is an instrument used to measure voltage that passes across a circuitA voltmeter to measure potetial is connected in parrallel
MEASURING CURRENT AND VOLTAGE
Reading of scale in measure:X = the scale show by the needle X the selected maximum scale the value on the scale by the max scaleX = 42/60 X 20 = 14 V
SHUNT
BASICMETER UNIT
MULTEPILER
+
MAX. VALUE
MAX. SCALE
SCALE SHOWN
An Ameter
Voltmeter
