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1. A 100 ohm resistor is joined in parallel with a 47 ohm resistor. What is the equivalent resistance?
2. Three capacitors of 2.0, 5.0, and 20 microF are joing together in parallel. What is their equaivalent capacitance?
3. Three capacitors of 1.0, 1.5, and 5.0 uF are joined together in series. What is their equivalent capacitance?
4. A single household circuit operates at 120V and is protected by a 15-A circuit breaker. How many 60-W lamps can be operated at the simultaneously without tripping the circuit breaker?
5. An elevator in a 20-story building is used to raise a 7200-N load 50 m. How much will it cost to raise the load if electricity costs $0.078/kWh? Assume that the elevator system is 50% efficient - that is, that the energy expended in raising the load is half of the total energy consumed.
What is ups and its types, operation ,advantage and disadvantage.
A 3-D cubic unit cell contains four atoms whose centers are positional halfway up along each of the vertical cell edges and one atom each centered in the middle of the top and bottom faces.
Discuss how can identify which resistances are in series and which ones are in parallel in a series-parallel circuit. How might this affect how you measure current and voltages in the circuit with a digital multimeter
Assume that you wish to connect an 8[ohm]speaker to an amplifier using an ideal transformer. The amplifier has a Thévenin voltage of 25[Vrms], and aThévenin resistance of 0.275[ohm]. Find the turns ratiofor the transformer
Computer analysis of the circuit shown in the Figure indicates that the values of the node voltages are v1=20 angle (-90 deg) and V2=44.7 angle (-63.4deg). Are these values correct? Calculate the current in each element using the values of V1 and V..
What would be the maximum stress in the ring under the action of this force? E=200GPa
You are told that inside the box is an electrical circuit, composed of either a resistor and inductor; or a resistor and a capacitor. You are also told that the impedance between those terminals was measured with an input frequency of 1 KHz.
a series RLC bandpass circuit with R= 30 ohms is designed to have a bandwidth of 5 Mrad/s and a center frequency of 50 Mrad/s. Find L, C,Q and the two cut off frequencies.
suppose that you wish to offer a voice over ip wireless service. the target packet error rate or drop rate is 103 and
A 10-uF capacitor has a voltage with the following time dependence:v(t)=20*[1-exp(-0.2*t)] in unit of Volt. Determine the current, power, and energy of the capacitor as a function of time
the N-type P-type doping levels of a silicon p-n junction are nd=na= 5x10^16 cm^-3 caltulate the built in voltage Vbi a) at a room temperture b) at 300c c) at 700 c (ni= 1.10x1018 cm^-3) does a negative value for Vbi mean anything
An AC Voltmeter uses a bridge rectifier and 100 ohm PMMC which requires a 1mA DC current for full-scale deflection. Assuming ideal diodes, calculate the value of the multiplier resistor to obtain full scale deflection with 10 V AC applied to the i..
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