Circuit Lab Quiz Practice

  1. Given V = 35 Volts, R1 = 3 ohms, R2 = 100 ohms, R3 = 2 ohms, Find:

  1. The total resistance
  2. Current
  3. Voltage change across R3
  4. The current at R2
  1. Draw the symbol for Resistance
  2. Draw a Short Circuit, and in a line explain what could go wrong when dealing with one.
  3. Decode this resistor:

Resistor Color Code-5 band resistor

Red, Green, Orange, Yellow, Violet

  1. Given  V = 6000V, R1 = 200 ohms, R2 = 800 ohms, R3 = 1000 ohms, R4 = 1000 ohms, Find:

  1. Find the Total Current
  2. Find the Voltage across R4
  3. Find the Total Resistance
  4. Redraw the circuit to simplify it.
  1. Draw the symbol of an LED

Answers:

  1. 105 Ω
  2. ⅓ A
  3. ⅔ V
  4. ⅓ A

Image result for resistor symbol OR Image result for resistor symbol

  1. Red Green Orange Yellow Violet

  2        5          3        *10K     ±.1%

= 253*10000 = 2530000

=2.53MΩ (I  accepted 253 * 10KΩ), but during future tests simplify it

  1. .1111 A
  2. 3000 Ω
  3. 666.666 Ω

Image result for led symbol

I  gave points if you left the arrow, but there is a difference the one with arrows is an LED, but the ones without are diodes. LEDs are diodes but diodes are not LEDs so be careful.