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- Check Your Understanding The current density is proportional to the current and inversely proportional to the area. If the current density in a conducting wire increases, what would happen to the drift velocity of the charges in the wire?An 80-2 resistor and a 20-2 resistor are connected in parallel, and then this combination is connected in series with a 32- resistor and a 24-V battery. An ammeter to measure the current through the 80- 2, and a voltmeter to measure the potential difference across the 32 Q is needed. TOraw the cireit 2 K he total 1e meter astanco of the cire What is the difference -potential across the 32-Q resistor? Across the 80-2 resistor? = 5. What is a fuse and how does it protect a circuit or device to which it is connected? 6. Show using diagrams how using only 2 Q resistors the following resistances can be made: ( a) 0.5 Ω (b) 1 Ω, ( c )3 Ω; ( d ) 5 Ω. 7. Three wires in a circuit meet in a common point. The currents flowing in two of them are 2 A and 3 A respectively. What are the possible values of the current in the third wire? Explain your answer [drawings would help]. D koksch_b201pdt Show AN MacBook Air esc 288 10 F11 F12 %23 & 2 4. 6. 8 9 11 delete Q W R T Y tab ps lock S D G H J. 11 K L…An electric razor has a resistance of 18 Ω and a c urrent o f 0.28 A . Calculate t h e potential drop acrossthe razor.
- sia papa and surpres Combip a ant The 45-5 Lattery delivers 71w of power to the circuit. What is the resistance 2 of each resistor ? Ri J+ 45V ry. ww sy.An 80-2 resistor and a 20-2 resistor are connected in parallel, and then this combination is connected in series with a 32- resistor and a 24-V battery. An ammeter to measure the current through the 80- 2, and a voltmeter to measure the potential difference across the 32 Q is needed. ADraw the cireni s 2 k he total resistance of the cirea? thiat current fle through the 32-Qesis 4. What is the difference of potential across the 32-N resistor? Across the 80-N resistor? 5. What is a fuse and how does it protect a circuit or deviče to which it is connected? 6. Show using diagrams how using only 2 Q resistors the following resistances can be made: (a) 0.5 2; (b) 1 2; (c) 3 N; (d) 5 N. 7. Three wires in a circuit meet in a common point. The currents flowing in two of them are 2 A and 3 A respectively. What are the possible values of the current in the third wire? Explain your answer [drawings would help]. D koksch_b201pdt Show AN MacBook Air esc 288 10 F11 F12 %23 & 2 4. 6. 8 9 11 delete Q W…A polentiometer wire has a resistance fee unit length 0.152/m. A cell of emf. 1.5 V balance against 300 cm Length of cuire. Find current through potentiometer wire ?
- Potential difference between two points of a wire carrying 22 ampere current is 4 volt. Find the resistance between these point?Unreasonable ResultsTwo resistors, one having a resistance of 145 Ω , are connected in parallel to produce a total resistance of 150 Ω. What is the value of the second resistance?mam/sir how do u draw an electrical circuit, with a voltometer and a anmeter.
- The potential difference accross the terminals of a battery is 20.0 V when the circuit is open. When a current of 2.0 A flows, the potential difference accross the battery drops to 16V. What is the terminal and the internal resistance of the battery?A miliammeter has a resistance of 10N and has a range of 0.25 mA. How will you convert it into a voltmeter to read voltage upto 25 volt ?An electric heater is constructed by applying a potential difference of 120 V to a - Nichrome wire that has a total resistance of 8.00, the current following is ...