Monday, April 11, 2011

ex no4

We had to build a circuit with 1 diode 1 zener diode and one resistors at 1k ohms voltage supply was 10v. We then had to do some voltage drop test then change the voltage to 15v and do the same thing.from the test we found out voltage was almost the same but the current would change. for 5vs at the resistor it was 4.61 and for 10v it was 9.56. then we use ohms law to get the current
V = AxR
4.61/1000=.004

no.2
V= A x R
9.56/1000=.009

when we put the voltage higher the currant gets higher at the resistor but almost the same everywhere else in the circuit

1 comment:

  1. what is the concept behind this, why does the voltage in the resistor change with increasing supply but in the diode/zener it doesn't?

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