Examine the circuit below. Which of the following statements is true? The reading on the ammeter would be 'zero'. A voltmeter cannot be connected to an ammeter. The reading on the voltmeter would be 'zero'. This circuit is not operational - no current can run in it.
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- For the circuit shown, find a) i1 b) v c) i2 d) The power supplied by the voltage source.Which statements are true? a) At any junction point in a circuit, the sum of all the currents entering the junction must equal the sum of all the currents leaving the junction. b) The sum of the changes in potential around any closed loop of a circuit must equal zero. c) Kirchoff's junction rule is based on the conservation of energy. d) Kirchoff's loop rule is based on the conservation of charge.The resistance of each brake lightbulb on an automobile is 6.7 Ω. Use the fact that cars have 12-V electrical systems to compute the current that flows in each bulb if they are connected in series. (For simplicity, assume that the circuit is only composed of one brake lightbulb and the car battery.)
- An ammeter is used to measure the current flowing through a circuit consisting of only two resistors in series with a D.C. power supply. The power supply is set to 25 Volts. One of the resistors has a resistance of 24 Ohms. If the ammeter measures 0.6 Amps, what is the resistance of the other resistor?ach of the circuits below consists of identical batteries and resistors. All of the switches are closed at the same time. A F a, Rank the circuits on the basis of their total resistance. Largest 1. 2. 3. 4. 5. 6. Smallest The ranking cañnot be determined based on the information provided. b. Rank the circuits.on the basis of the elapsed time before the battery "dies". Largest 1. 2. 3. 4. 5. 6. Smallest The ranking cannot be determined based on the information provided. Explain the reasons for your rankings:In the circuit indicated in the figure, the battery has an internal resistance of 0.04 Ω. If an ammeter with a resistance of 0.04 Ω is inserted into node “a”, what is the reading of said ammeter? a) 10 Ab) 0.1 Ac) 190.1 Ad) 10.27 A
- When using an ammeter to measure current: Group of answer choices open the circuit at the positive and negative terminals of the battery. open the circuit and connect the meter in series between the two open ends. open the circuit at one point and connect the meter to one end. connect the meter across the battery or load.Two resistors are connected in series in a circuit with a battery. The electromotive force (emf) of the battery is 3.0 volts. The resistances are 0.40 ohms and 1.85 ohms. (a) Determine the current I. Hint: The same current flows through both resistors. The voltage drop across the two resistors, i.e. IR₁ ✈ IR₂, is equal to the emf. (d) Determine the power in the first resistor. 1.78 W (e) Determine the power in the second resistor. 2.49 W4