The oscillating current in an electrical circuit is as follows, where I is measured in amperes and t is measured in seconds. I = 8 sin(60πt) + cos(120πt) Find the average current for each time interval. (Round your answers to three decimal places.) A.) 0 ≤ t ≤ 1/60 B.) 0 ≤ t ≤ 1/240 C.) 0 ≤ t ≤ 1/30

The oscillating current in an electrical circuit is as follows, where I is measured in amperes and t is measured in seconds. I = 8 sin(60πt) + cos(120πt) Find the average current for each time interval. (Round your answers to three decimal places.) A.) 0 ≤ t ≤ 1/60 B.) 0 ≤ t ≤ 1/240 C.) 0 ≤ t ≤ 1/30

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 40PQ

See similar textbooks

Similar questions

Q1) Ohm's Law (in electricity) states that the current (I) is proportional to the applied voltage (V). The constant of proportionality is the resistance (R). The resulting equation is: V = IR. This equation is re-arranged to: I = (1/R) V. Since this is a linear equation, the plot between V (on the x-axis) and I (on the y-axis) should be a straight line, with the slope being 1/R. In an experiment, the following data has been obtained for current for different values of the voltage. Voltage 1 2 3 Current 0.8 2.5 2.9 4.2 5.6 a) Determine the equation for the best-fit line from this data, by using the method of least squares. Equation: Plot the data points, and the straight line representing the equation that you found in part b) 'a'. (Note: the best-fit line will not pass through all the data points) c) Use the slope of the line to find the resistance. Resistance: LO
An electric current is given by the expression I(t) = t2 + 1, where I is in amperes and t is in seconds. What is the total charge carried by the current from ti = 2.5 to tf = 4.6 s? (Answer in 1 decimal place)
Given the voltage sources e₁=20 V, e2-5 V, and the resistances R₁=1000, R₂-3000 and R3-5002, find current i3 (in amperes) in the circuit. Round your answers in two decimal places. + 1₁. Ⓒ 21 VR₁ + R₁ LA R₂ A B e₂ VR2 23 L2 R3 VR₂ L3
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. sq
An electric current in a conductor varies with time according to the expression I(t) = 100 sin (120πt), where I is in amperes and t is in seconds. What is the total charge passing a given point in the conductor from t = 0 to t = (1)/(240) s?
R2 R1 d E2 - Enter only numerical answers on the spaces provided, units are already included. Answers must be entered in two decimals. Note that answers' accuracy was set to 0.05. Numbers in Scientific notation form should be entered with "E", e.g: 1.602 x 10-19 has to be entered as 1.602E-19. Given a single loop circuit with emfs E1 = 9.07V, E2 = 0.29V, resistors R1 = 7.70, R2 = 8.892, all connected in series to each other and a polarity of 51 is in opposite direction that of 2 (see a circuit attached). Using circuit analysis rules, the value of current flowing through the circuit is l= A? [NB: loop in the given direction of current.]
1.15 When a car has a dead battery, it can often be started by connecting the battery from another car across its terminals. The positive terminals are connected together as are the negative terminals. The connec- Si tion is illustrated in Fig. P1.15. Assume the current i in Fig. P1.15 is measured and found to be 40 A. a) Which car has the dead battery? b) If this connection is maintained for 1.5 min, how much energy is transferred to the dead battery? Figure P1.15 12V 12V
13.Consider an electric circuit containing a capacitor, resistor, and battery; see Figure 1.2.3. The charge Q(t) on the capacitor satisfies the equation R(dQ/dt)+Q/C=V,where R is the resistance, C is the capacitance, and V is the constant voltage supplied by the battery. a.If Q(0) = 0, find Q(t) at any time t, and sketch the graph of Q versus t. b.Find the limiting value QL that Q(t) approaches after a long time. c.Suppose that Q(t1) = QL and that at time t = t1 the battery is removed and the circuit is closed again. Find Q(t) for t > t1 and sketch its graph. figure1.2.3The electric circuit of Problem 13.
1.9. 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 D 3.492 www 21 3.492 www 19 www Find the current 3. Answer in units of A. 9 V 9 V (A) B F C
An electric current is given by I(t) = 100sin(20rt), where I is in amperes and t is in seconds. What is the total charge (in C) carried by the current from t = 0 tot = (1/20) s? Lütfen birini seçin: a. 0.21 b. 1.6 O c. 0.8 O d. 0.47 e. 3.2
My professor gave me 5 multiple choice answers for this problem. Does any of these fit the answer that you provided? a. v = 1.4 v0 b. v = v0 c. v = 0.87 v0 d. v = 0.71 v0 e. v = 0.50 v0