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A person has a 72 V battery along with 6, 9, and 18 ohm resistors. They are first wired in series, then is parallel.
Suppose that you have a 460Ohm, a 850Ohm, and a 1.50kilo-Ohm resistor. What is the maximum resistance you can obtain by combining these?
A wire carries a steady current of 0.1 A over a period of 20 s. What total charge moves through the wire in this time interval?
I have five circuits and want to run each one, one at a time, and then all five at the same time. My source is 12Vdc and 1500mA.
If you decrease or increase the 25 ohm or 50 ohm resistor what happens? Does the current or voltage change? Please briefly explain.
A battery is connected between A and G. Can you find one set of three points that are at the same potential? Can you find another set?
Current flowing through R7 = 12 O resistor , Current flowing through R6 = 12 O resistor .
A 21 V source is in series with a 3 ohm and a 4 ohm resistor. What is the total power absorbed by the 4 ohm resistor?
Why does a pencil appear to be bent when it is partially submerged in a basin filled water. Try drawing the diagram and explain.
The 1 muF capacitor is charged from a 10 V battery via the 1 kOhm resistor. How long does it take for the voltage on the capacitor to reach 6.3 volts?
At time t = 0 , the voltage across a capacitor rated at 3/10 F is 10 V. A switch is closed and the capacitor is in series with a resistor R = 50 ohms.
Make a sketch of the response of the bandpass filter from 500 Hz to 10 kHz. Use a dB scale on the vertical axis and a log frequency scale.
The proton passed through a hole in the negative plate into an area where there is a magnetic field of 2T at right angles to the direction of the protons.
How might changes in climate affect the relative distribution of organisms in an ecosystem? Provide an example.
Helium and lithium are two elements that differ only in one electron. Why do you think they exhibit such different chemical and physical behavior?
For the circuit shown, find the combined impedance of the 160 uH inductor and 10uF capacitor when w=25 M rad/s.
Calculate the voltage across each capacitor, the charge separated in each, and the stored energy in each.
A calculator draws a current of 0.0001 A for 5 minutes. How much charge flows through it?
There are several ways to answer these questions, but you must support your answer with a quantitative argument.
For the circuit in Fig, each utilizing an ideal diode(or diodes), sketch the output for the input shown.
Operation starts when switch S1 is opened. After the battery is fully charged, switch S1 is closed. Define the appropriate values of R1, R2, and R3.
In the diode shown, the diodes are ideal except that each is modeled by a voltage source of 0.5V in series with a (diode) resistance of rd = 20.
Why and how does charge flow from one capacitor to another capacitor when the two are connected to each other by a conducting wire?
An inductor has an inductance of 25mH. What is the reactance of this inductor at frequencies of 60, 1000, and 10,000 Hz?
A 100 kVA, 60 Hz, 7200/480 V, single-phase transformer has the following parameters (all expressed in ohms):