Physics
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The following circuit shown in the figure is built during a lab activity. Calculate the current flowing through each of the branches AB, CD, and EF.
As shown in the figure, a circuit consists of two ideal electromotive force (emf) sources and eight resistors. When the current flows through the resistor "R", it produces heat at a rate of 3.0 W. Find i) the value for the emf (E) and ii) the value of the positive terminal of the unknown power source.
A student made the electric circuit, as shown in the figure below, to measure the value of an unknown resistor, Ra, that is using ideal batteries. The red ammeter indicates a value of 2.25 A. Find the resistance of Ra.
Consider the circuit as depicted below. Calculate the magnitude and direction of the current through the 5-Ω resistor.
Consider a circuit consisting of a 9.0-V battery, a 100.0 μF capacitor, a 60.0 Ω resistor, a switch, and an ammeter wired in series. Initially, the switch is open and the capacitor is totally discharged. The switch is closed, and after a time t, the ammeter shows a value of 0.05 A. Determine the charge Q on the capacitor at time t.
Both batteries in the figure below are ideal. The batteries E1 and E2 have a voltage of 8.0 V and 6.0 V, respectively. The resistors R1 and R2 have values of 25.0 Ω and 15.0 Ω, respectively. Calculate the current flowing through the resistor R2.
The ideal batteries shown in the figure below are ideal and have electromotive forces E1 and E2. Calculate E1 and E2.
i) What is the expected reading of the ideal voltmeter in the figure shown if the switch S is open? i) Which point (M or N) has the greatest electrical potential?
An experimental procedure states that you assemble the circuit shown below using two non-ideal batteries and three resistors. Determine the potential drop Vps across points p and s.
Non-ideal power supplies are used to power the circuit shown. The emf of the power supplies is 9.0 V, and 4.00 V. Determine the terminal voltage of the 9.0 V power supply.
Two non-ideal power sources are used to power the circuit shown below. Determine the magnitude and direction of the current in the circuit.
Use the given circuit to determine the current through the resistor R1.
For the diagram shown below calculate i) the electromotive forces E1 and E2 and ii) the electrical potential difference VF-VE.