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- (Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Explain what current, resistance, and voltage are.(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . If a new material is found that is a superconductor at all temperatures, what parts of some common electric deices would definitely not be made out of it? Explain.(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Make a sketch of an electric circuit that contains a switch and two lightbulbs connected in such a way that if either bulb burns out the other still functions, but if the switch is turned off, both bulbs go out.
- (Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . A simple electric circuit consists of a constant-voltage power supply and a variable resistor. What effect does reducing the resistance have on the current in the circuit and on the power output of the power supply?(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . A solid metal cylinder has a certain resistance. It is then heated and carefully stretched to form a longer, thinner cylinder. After it cools, will its resistance be the same as, greater than, or less than what it was before? Explain our choice.(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . There are two basic methods for connecting more than one electrical device in a circuit. Name, describe, and give the advantages of each.
- (Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Alternating current with a frequency of 1 million Hz flows in a wire. What in particular could be detected traveling outward from the wire?Pacemakers designed for long-termuse commonly employ a lithium-iodine battery capable of supplying 0.42 A # h of charge. (a) How many coulombs of chargecan such a battery supply? (b) If the average current producedby the pacemaker is 5.6 mA, what is the expected lifetime of thedevice?How do yo find Vo for this problem? And the current?
- State Ampère’s law, including the reference directions for the currents.A copper transmission cable 34 km long and 19.5 cm in diameter carries a current of 11 A. How much electrical energy (in MJ) is dissipated as thermal energy in 9 hours? Note: = 1.72x10-8 m show the complete and organize solution and dont round off show the final asnwer in 4 decimal places if possibleA lightning stroke lasts 0.03 s and involves a flow of 130 C. What is the current?