Ohm's Law

V

A

R

VDC

CONTROLS

   DC volt :       Volt
   Resistance : Kohms

INSTRUCTION

  1. Set the Resistance Value(1 Kohm - 100 Kohm).
  2. Set DC voltage(0-30 V).
  3. Voltmeter is placed parallel to resistor and ammeter in series with resistor.
  4. Now note the Voltmeter and Ammeter reading for DC voltage.
  5. Increase the DC voltage by 2 factor and note Voltmeter and Ammeter Readings. Keeping resistance value constant
  6. Plot the V-I graph to verify Ohm's Law
  7. Repeat step 2 to 6 for another set of resistance value.
  8. V versus I graph is a straight line.
  9. Therefore from the graph we see that the resistance do adhere to Ohm’s law. Thus resistance is said to be an Ohmic device.

EXPERIMENTAL TABLE

Resistance: KΩ



Serial No. Voltage(Volt)
V		 Current(milliAmpere)
mA

GRAPH PLOT

Print