Q.10 Write any 5 precautions to be taken to work in an electrical laboratory.
Q: Two resistors with values of 17 Ω and 50 Ω, respectively, are connected in parallel and hooked to a…
A:
Q: If you accidentally touch the "hot" wire connected to the 120 VV line, how much current will pass…
A: Given Resistance R = 1.9 kohm = 1.9 x 103 ohm = 1900 0hm applied potential difference V = 120 V
Q: Review For safety reasons, electrical codes have been established that limit the amount of current a…
A: maximum current (i) = 5 A Cross sectional area of wire (A) = 1.17 mm2Using , 1 m = 1000 mm A =…
Q: Two resistors with values of 29 N and 40 N, respectively, are connected in parallel and hooked to a…
A: Resistance of resistor 1 = R1 = 29 ohm Resistance of resistor 2 = R2 = 40 ohm Connection is parallel…
Q: Electrons in an X-ray tube are accelerated through a potential difference of 1.25 x 102 kV and…
A: Electrons are accelerated through potential difference V=1.25×102 kV Current is I=13 mA Note: 1…
Q: Resistivity of steel is larger than that of copper. If a copper wire and a steel wire are having the…
A:
Q: You charge an initially uncharged 79.7 mF capacitor through a 44.32 resistor by means of a 9.00 V…
A: Given: C = 79.7 mFR=44.3 ohmV=9 volts
Q: 280 CHAPTER 6. ELECTRONICS .6.17 How many electrons will pass through a cylindrical copper wire of…
A: We know current density J =I/A Where I = current flowing coper wire A = area of copper wire But…
Q: R A real battery with an emf of 12v ta terminal voltage of U vis Connected to a load resis-tor which…
A: Given data: Emf of battery (ε) = 12 V Terminal voltage (V) = 11 V Power dissipated by load resistor…
Q: ong wire is made of a metal with the same electron density as copper. The wire ed across the…
A: L=1.5mV=9v
Q: Consider two copper wires. One has three times the cross-sectional area of the other. How do the…
A: Resistance=resistivity×length/Area
Q: The Iceberg Kid, infamous for imposing a deep freeze on whoever disagrees with him, discovers that…
A: Given., Thermal energy is generated W = 177 J For time t = 7.69 Voltage V = 12 V We know the…
Q: 1.70 mm cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a…
A:
Q: Three resistors R1 = 3, R2 = 6, and R3 = 4 are connected as shown in the sketch to a battery that…
A: Given data: The resistances are, R1=3 OhmR2=6 OhmR3=4 Ohm The current in the resistance R1, R2, and…
Q: Two resistors with values of 18 Ω and 48 Ω, respectively, are connected in parallel and hooked to a…
A:
Q: Question 7.21 only
A:
Q: Four 1-50 V AA batteries in Series an are used to power a transistor radio - If the batteris Can…
A: Given four AA batteries are connected in series and give power to a transistor radio. the voltage of…
Q: An aluminum wire having a cross-sectional area equal to 2.10 x 106 m² carries a current of 7.00 A.…
A:
Q: When the starter motor on a car is engaged, there is a 250 A current in the wires between the…
A:
Q: Digital thermometers often make use of thermistors, a type of resistor with resistance that varies…
A: The resistance variation with the temperature is given by R = Ro(1 + α ∆T) where, Ro is the…
Q: You are working at a company that manufactures electrical wire. Gold is the most ductile of all…
A:
Q: A cylindrical platinum wire is 0.0644 mm in diameter and 1.05 m in length. The wire carries a 1.05 A…
A: The diameter of the wire, d=0.0644mm=0.0644×10−3m.So its radius isr=d/2=0.0644×10−32m.So the…
Q: Calculate the average current (in A) in the lightning bolt.
A: Given: Number of electrons is N=1.01×1020 Time for which lightning bolt glow is t=0.202 s Find:…
Q: Suppose you wish to fabricate a uniform wire from 1.00g of copper. If the wire is to have a…
A:
Q: The conduction electrons in a cylindrical, current-carrying wire have a drift velocity of 0.35 mm/s.…
A: Given Drift velocity vd = 0.35 mm/s = 0.35 × 10-3 m/s Radius of wire r = 1 mm = 10-3 m Number of…
Q: 13. A very long straight, cylindrical wire lying along the x axis has a diameter of 0.250 mm and is…
A:
Q: ▾ Part A A 1.40 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains…
A:
Q: 25.23. A rectangular solid of pure germanium measures 12 cm X 12 cm X 25 cm. Assuming that each of…
A: Given : Length (l) = 12 cm = 0.12 m Breadth (b) = 12 cm = 0.12 m Height (h) = 25 cm = 0.25 m
Step by step
Solved in 2 steps with 2 images
- Choose true or false for each statement regarding the resistance of a wire. While maintaining a constant voltage V, the current I increases when the resistivity p of a wire decreases. O While maintaining a constant voltage V, the current I increases when the cross-sectional area A of a wire expands. The resistivity p is proportional to the resistance R of a wire. Submit Answer Tries 0/2 Choose true or false for each statement regarding resistors in a circuit. O Three identical resistors in series have one third the resistance of each individual one. 8 If you connect two different resistors in parallel in a circuit, then the current that flows through each of them is different. If you connect two different resistors in parallel in a circuit, then the voltage across each of them is different.A A 3Ω 8 V= 6 V B Calculate the ammeter reading in the electrical circuit?A conductor has a cross-sectional area of 2.3x10-6 m² and the number of free electrons per unit volume is 8.5X1028 electron/m3. When the current is 12.3 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6X10- 19 9 С. Select one: O A. 39.32 О В. О.52 OC. 0.39 O D. 51.62 O E. 0.27
- Take a look at the four conductivity materials listed. Which of the following statements regarding the current density J₁ in material n is TRUE when subjected to the same electric field? A. JD > JC > JA > JB B. JA JB > JC > JD C. JB > JA> Jc > JD D. JD > Jc > JB > JA Material A B с D Conductivity (2 m) 2.44 × 108 1.47 × 108 3.25 × 108 5.5 × 108When a material has a negative temperature coefficient of resistance, O It has a negative resistance value at any temperature. An increase in temperature results in a decrease in resistance. It must be a conductor. O All of theseplease exaplain me step by step and clear hand wrriting please
- need help on c and eTwo resistors with values of 21 Ω and 46 Ω, respectively, are connected in parallel and hooked to a 14 V batter. (a) What would be the current in the circuit? A (b) What would be the power expended in the circuit? WTo what temperature (in °C) must you raise a copper wire, originally at 20.0°C, to triple its resistance, neglecting any changes in dimensions? C