A. in the circuit below, identify how the resistors are connected and then identify the quantity that must always be the same for these resistors.

b. write two or three sentences to describe what an ammeter measures about a resistor and how it should be connected with the resistor in a circuit.

c. what is the voltage drop across 60.0 ω resistor that has a 0.300 a current?

d. draw and label a circuit diagram that has a 24.0 v power supply and two 10.0 ω resistors connected in a series.

e. what is the equivalent resistance of 3.0 ω resistor and 2.0 ω resistor connected in parallel?

f. describe how a circuit breaker works to protect against household fires.

g. in the circuit below, identify all resistors that will stop working when the switch is opened. (second image)

For problems 1-3, consider a simple dc brush motor with a permanent magnet stator. with an an consider a simple dc brush motor with a permanent magnet ae supply voltage of 100 v, the no-load speed of the motor is 1000 rpm. this motor can provide a torque of 1.9 n-m at 800 rpm drawing a current of 2 a current are both zero at no load.) 1. with an armature supply voltage of 100 v, the motor is operated at 900 rpm. what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input? what is the energy efficiency of the motor? with an armature supply voltage of 100 v, the motor is operated at 1100 rpm (where it acts as a generator). what torque input is required? what mechanical power is required what current is generated? what is the electrical power generated? what is the energy efficiency of the motor acting as a generator? 2. with an armature supply voltage raised to 120 v, the motor is operated at 1000 rpm. what is the no-load speed? what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input what is the energy efficiency of the motor? 3.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?