When resistors 1 and 2 are connected in series, the equivalent resistance is

$$20.0 \Omega$$

. When they are connected in parallel, the equivalent resistance is

$$3.75 \Omega$$

. What are (a) the smaller resistance and (b) the larger resistance of these two resistors?

Use the diagrams shown to answer the following questions. (a) Find the equivalent stiffness of four springs connected as shown. (b) Find the equivalent stiffness of four springs connected as shown. (c) Find the equivalent resistance of four resistors connected as shown. (d) Find the equivalent resistance of four resistors connected as shown.

Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m long and 75 cm in diameter. It is tightly wound with a single layer of 2.0 -m m-diameter superconducting wire. What size cur rent is needed?

Determine the equivalent resistance between the points $A$ and $B$ for the group of resistors in the drawing.

You are given the equation(s) used to solve a problem. For each of these, a. Write a realistic problem for which this is the correct equation(s). b. Finish the solution of the problem. $\frac{\left(9.0 \times 10^{9} \mathrm{Nm}^{2} / \mathrm{C}^{2}\right) q^{2}}{(0.0150 \mathrm{m})^{2}}=0.020 \mathrm{N}$

A total resistance of 3.00 $\Omega$ is to be produced by connecting an unknown resistance to a 12.0 $\Omega$ resistance. What must be the value of the unknown resistance?

The equivalent resistance of a group of resistors connected in parallel is (i) greater than any of the resistors in the group, (ii) less than any of the resistors in the group, or (iii) neither of the above.

The current in a single-loop circuit with one resistance R is 5.0 A. When an additional resistance of 2.0 Ω is inserted in series with R, the current drops to 4.0 A. What is R?

A total resistance of 3.00 $\Omega$ is to be produced by connecting an unknown resistance to a 12.0 $\Omega$ resistance. Should it be connected in series or in parallel?

Find the vertex and axis of the graph of the function. Rewrite the equation for the function in vertex form. ƒ(x) = 6-2x+4x²

Thermal energy is produced in a resistor at a rate of 100 W when the current is 3.00 A.What is the resistance?

At a certain harbor, the tides cause the ocean surface to rise and fall a distance d (from highest level to lowest level) in simple harmonic motion, with a period of 12.5 h. How long does it take for the water to fall a distance 0.15d from its highest level?

A certain brand of hot-dog cooker works by applying a potential difference of 120 V across opposite ends of a hot dog and allowing it to cook by means of the thermal energy produced. The current is 10.0 A, and the energy required to cook one hot dog is 60.0 kJ. If the rate at which energy is supplied is unchanged, how long will it take to cook three hot dogs simultaneously?

What is the equivalent capacitance of the three capacitors figure mentioned?