Imagine building a circuit using a perfect insulator (a device of infinite resistance, which allows no current flow) in place of the carbon resistor a. Would the plot of the data be a straight line? b. If yes, what would the slope of that line be? If no, what shape would the line be?
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Imagine building a circuit using a perfect insulator (a device of infinite resistance, which allows no current flow) in place of the carbon resistor
a. Would the plot of the data be a straight line?
b. If yes, what would the slope of that line be? If no, what shape would the line be?
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- sq 4. Maximum surface resistance. Consider a square sheet of side L, thickness d, and electrical resistivity p. The resistance measured between opposite edges of the sheet is called the surface resistance: R = pL/ Ld = p/d, which is independent of the area of the sheet. (R is called the resistance per square and is expected in ohms per square, because p/d has the dimensions of ohms.) If we express p by p=m/ne²t, then Rq=m/ndet. Suppose now that the minimum value of the collision time is determined by scattering from surfaces of the sheet, so that Td/v, where v is the Fermi velocity. Thus the maximum surface resistivity is Rmvp/nd²e². Show for a monatomic metal sheet one atom thickness that sq Rħ/e² = 4.1k, where lkn is 10³ ohms. sqAn electron is fired at a speed v = 3.1 x 10° m/s and at an angle 0, = 36.8° between two parallel conducting plates as shown in the figure. If s 1.8 mm and the voltage difference between the plates is AV = 98.8 V, determine how close, w, the electron will get to the bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the coordinate system is in the middle of the parallel plate capacitor. !!In the last column in the data table, it says that it's about voltage(v) divided by current(A) is equal to ohms so V/A = ohms. So if it's V/A and if you divide them to get the slope it's (y2-y1)/(x2-x1) then shouldn't V be the y value and A be the x value? And can you also try to use a line of best bit instead of drawing the line through each dot?
- An electron is fired at a speed vi = 4.3 × 106 m/s and at an angle θi = 39.7° between two parallel conducting plates as shown in the figure. If s = 1.7 mm and the voltage difference between the plates is ΔV = 99.8 V, determine how close, w, the electron will get to the bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the coordinate system is in the middle of the parallel plate capacitor. Round your answer to 6 decimal places.An electron is fired at a speed vi = 3.1 × 106 m/s and at an angle θi = 36.8° between two parallel conducting plates as shown in the figure. If s = 1.8 mm and the voltage difference between the plates is ΔV = 98.8 V, determine how close, w, the electron will get to the bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the coordinate system is in the middle of the parallel plate capacitorA charge of 0.060 mC flowed through a wire for 2.4 s. What was the current in this wire? answer in microamperes. how do you calculate this? I converted mC to C and I divided it by 2.4 s and I converted to amperes. i don't know if I did the conversions right or anything can someone clarify
- Solve the following: 1. How many nanocoulomb are there in 3.65 billion electrons ? 2. A 25 ampere electric current flows in a conductor in 75 millisecond. Find: a. current equivalent in mA? b. How many charges are transferred ? c. How much work is required to transfer if 3V is applied. 3. A charge of 3.5 µC present in an electric field produces a force of 0.008 Newton. What is the intensity of the electric field ? 4. A charge of 0.6 µC is placed in an electrostatic field whose intensity is 3 x 105 N/C. How strong is the force acting on the charge ? 5. Two objects are both negatively charge with 0.04 coulomb each and 140 cm apart. What kind of force exist Between charges? How much? 6. Find the force that exist between two charges of 8.53 μC and 4.5 µC that 0.25 meters in air?What is the current read by the ammeter in the circuit below? Let R1 = 1 kiloohm, R2 = 2 kiloohm, R3 = 3 kiloohm, and the emf of the ideal source is 5 volts. Input R1, R2, and R3 for resistors R1. R2. and R3 respectively. Input E for the emf E. Use context clues to figure out if you need to input a numerical value, varioble, word, etc. All numerical answers should be in three significant figures. R1 R2 R3 (A) First we calculate the current across each resistor. From Ohm's law, we arrive at a general formula for current: 1= v R Plugging in values, the current across the resistor R1 is equal to: (Please note that the current is in milliamperes) 1 = eeec0os Similarly the current across R2 is: mA1.9. A block of conductor has the dimensions Lo x 2Lo x 4Lo. As shown in the figure below, the same battery is connected across the conductor in three different configurations. Which configuration draws the smallest current from the battery? All configurations draw equal current. 21 Lo 4Lo 4LO (a) (b) (c) (d)
- A student woants to identify the Resistivity of a conducting wire of unknown material. Resistivity is a property of a material that quantifies how strongly it conducts electric current, and it is formulated as, of p= R4 where R is the Resistance (ohms), A cross-sectional area (meters-squared) and I is the length (meters) of the wire. The student runs an experiment on a cylindrical wire of a length l of 2 centimeters and the cross- sectional area A of the wire is 6.1 centimeters-squared. The measurements of the Current is as below Dataset Voltage (Applied, Volts) Current (Measured, Amperes)Solve the following problems. identify the given, the unknown, give the formula to be used, show the solution, and express the final answer into 2 decimal places. You can use a separate sheet of paper in solving the problem. 1. Find the current along a circuit if the voltage is 110 V with a resistance of 22 Ohms. and Given. Unknown: and Unknown: 3. Calculate for the voltage supplied to a load if the current is 2.5 A and the resistance is 10.80 Ohms. and Given: Unknown: Solution: Performance Task Formula: Solution: Final Answer: 2. What is the resistance of a bulb with a current of 0.72 A that is connected to a 110 V supply. Given: Formula: Solution: Final Answer: Formula: Final Answer:(1) What is a definition of electric current? Label the variables. (2) Suppose that 1016 electrons pass through a cross-section of a wire each second. What is the current in the wire? (3) The current in a wire varies with time according to the relation / = 5+3t where I is in amperes andt is in seconds. What is the number of coulombs of charge that pass a cross section of the wire between t=3s and t=5s?