A resistor of unknown resistance is connected in series to a 3-ohm resistor. The voltmeter in the 3-ohm resistor registers 4 V and in the unknown one 6 V. What is the resistance of the unknown resistor?
1. A resistor of unknown resistance is connected in series to a 3-ohm resistor. The voltmeter in the 3-ohm resistor registers 4 V and in the unknown one 6 V. What is the resistance of the unknown resistor? Draw the circuit diagram in the given part.
2. The voltage of a battery is found to be 4.2 volts. Two resistors of 2 and 4 ohms are connected in series to the battery. Then a single resistor of unknown resistance is connected in parallel with the two resistors. A current of 1.4 amperes is registered in the ammeter of the unknown resistor. What is the current in the 2-ohm resistor? What is the voltage in the 4-ohm resistor? Draw the circuit diagram in the given part.
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