QUESTIONS AND FULL SOLUTIONS
⩥Ohm's Law unlocks - The relationship of current, resistance, voltage,
and power
⩥As voltage increases - current increases if resistance stays the same
⩥As resistance increases - current decreases if voltage stays the same
⩥I = V/R - Current = Voltage/Resistance
⩥R= V/I - Resistance= voltage/current
⩥V= IR - voltage = current x resistance
⩥Series circuit - A circuit where current (I) flows in a single path
⩥What is the sum of all the voltage drops in a series circuit? - It equals
the applied voltage
⩥How do you find the voltage drop? - Multiply current (I) by the
resistance of R1
, ⩥Opens have: - -maximum resistance
-no path for current flow
- Applied voltage
⩥Shorts have: - -no resistance
-0 voltage
-increases circuit resistance
⩥Changed value: - -resistance/current increases or decreases
⩥2 methods to troubleshoot a circuit: - -Trial and error
-logical procedure
⩥Steps when troubleshooting any circuit: - 1. Analyze the circuit
2. Check the setup
3. Calculate and measure values
4. Check the results
⩥3 faults common in a series circuit - -open
-shirt
-changed value