27. Resistors & DC Circuits
Solving Resistor Circuits
27. Resistors & DC Circuits
Solving Resistor Circuits
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- Multiple Choice
What is current and voltage across each resistor below?
1208views29rank3comments - Multiple Choice
What is the voltage of the battery below?
1007views25rank4comments - Multiple ChoiceThe five identical lightbulbs in the figure are all glowing. What change in brightness will occur if bulb S is unscrewed and removed from the circuit?868views
- Multiple Choice
If the current in the resistor is , what is ?463views - Textbook QuestionIn the circuit shown in Fig. E26.31 the batteries have negligible internal resistance and the meters are both idealized. With the switch S open, the voltmeter reads 15.0 V. (b) What will the ammeter read when the switch is closed?1101views
- Textbook Question
(II) A galvanometer has a sensitivity of 45kΩ/V and internal resistance 20.0 Ω. How could you make this into
(a) an ammeter that reads 1.0 A full scale, or
135views - Textbook Question
(II) A galvanometer has an internal resistance of 32 Ω and deflects full scale for a 48-μA current. Describe how to use this galvanometer to make
(b) a voltmeter to give a full scale deflection of 250 V.
193views - Textbook Question
(II) A milliammeter reads 25 mA full scale. It consists of a 0.20-Ω resistor in parallel with a 33-Ω galvanometer. How can you change this ammeter to a voltmeter giving a full scale reading of 25 V without taking the ammeter apart? What will be the sensitivity (Ω/V) of your voltmeter?
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