Midterm 2_ENGR 70_SP23

A battery with E = 39 V and negligible internal resistance is connected to a voltage conductor as shown in the figure.R1=220 R2=68  a) What is the voltage U if no external load is connected? ____________ b) What is the current between A and B if these connections are short-circuited.____________ c) What is U if a load with a resistance of 68 is connected between A and B?____________ d) What is the power of the circuit if a load with a resistance of 68 Ω is connected between A and B? ____________

The circuit diagram below is for a robot that walks around the room. It is designed to stop walking when certain conditions are met.   a) In which of the following cases will the robot start walking? i. The robot is far from the wall. ii. The battery status is good. iii. The room lights are on. iv. Both i and ii. v. i, ii, and iii. vi. ii and iii, but not i. vii. i and iii, but not ii.  b) Explain what happens to the robot if the light is turned off. ______________________________________________________________________________ ______________________________________________________________________________  c) If you remove the light sensor and the AND gate attached to it from the circuit from the circuit, which of the following are true and which are false? i. The robot will continue to walk with a low battery ii. The robot will stop walking if it is close to the wall iii. One of the remaining inputs (proximity sensor and battery status) is irrelevant to whether the robot walks or not.…

Question 8 Use your understanding of equivalent resistance to complete the following statements: Two 6- resistors placed in parallel would provide a resistance which is equivalent to one _____- resistor.  Three 6- resistors placed in parallel would provide a resistance which is equivalent to one _____- resistor. Three 8- resistors placed in parallel would provide a resistance which is equivalent to one _____- resistor. Three resistors with resistance values of 2- , 4- , and 6- are placed in parallel. These would provide a resistance which is equivalent to one _____- resistor. Three resistors with resistance values of 5- , 6- , and 7- are placed in parallel. These would provide a resistance which is equivalent to one _____- resistor. f. Three resistors with resistance values of 12- , 6- , and 21- are placed in parallel. These would provide a resistance which is equivalent to one _____- resistor.

Determine the current, voltage and power dissipated by each of the 6 resisters in the following circuit: R47:     V:_______   I:_______   P:_______ R16:    V:_______   I:_______   P:_______ R5:     V:_______   I:_______   P:_______ R40:    V:_______   I:_______   P:_______ R22:    V:_______   I:_______   P:_______ R2 :     V:_______   I:_______   P:_______

In the figure below, R1 = 175 Ω, R2 = 55 Ω, and the ideal batteries have emfs ℰ1 = 8.0 V, ℰ2 = 5.5 V, ℰ3 = 2.0 V. (a) Find the current in resistor 1. ______________A(b) Find the current in resistor 2. ______________A(c) Find the potential difference between points a and b. ______________V (please show the units when working through the problem so that I can follow it easier)

107) Which of the following describes a voltage drop test? O Connecting the (-) DMM lead battery positive and connecting the DMM (+) lead to battery negative. Connecting the DMM lead to the battery negative terminal and connecting the DMM lead to a good engine or chassis ground. O Connecting both DMM leads to the negative terminal of the battery. Connecting the DMM lead to the battery positive terminal and connecting the DMM lead to a good engine or chassis ground.

Ohm's Law states that the electric current flowing though a ________ is directly proportional to the ________. Select one: a. closed circuit --- total resistance b. closed circuit --- switch resistance c. open circuit --- supply voltage d. closed circuit --- supply voltage

14. Which of the following lead-acid battery voltages has the highest value?A. Equalize voltageB. Open-circuit voltagels.C. Discharge voltageD. Floating voltage   Obs: I inform you that the answer to letter " A " is wrong, according to the test I did. I appreciate your help which of this question is the correct answer. thanks

I need the answer as soon as possible

Solve the question on pen and paper. And mentioned parts a and b. TIA

Suppose the current in this circuit is I = -35 A. The voltage drop across each circuit element is as given in the table below. From this information, determine, for each of these circuit elements, (i) whether an active or passive sign convention is being used for that element, (ii) whether that element is absorbing or producing a net (positive) amount of electrical power. In each answer box within the table below, type the correct choice from among the bold-faced words above. - A A B C A + с B + V₂ Circuit element Voltage drop Sign convention? Absorbing or producing net electrical power? -5 V -6 V 1 V -

Please answer with detail and how it is done. Photo is attached with the questions.

Still confused about how you calculated the current. Could you please elaborate a little? thank you

Four electricians are discussing voltage ratings of circuit breakers. Electrician A says that a circuit breaker marked 120/240 V is acceptable for a circuit that doesn't exceed 220 V between any two conductors. Electrician B says that a circuit breaker marked only 240 V wouldn't be acceptable for a circuit exceeding 220 V between any two conductors. Electrician C says that a circuit breaker marked 120/240 V is acceptable for a circuit that exceeds 220 V between any two conductors. Electrician D says the 120/240 V breaker would be acceptable for a circuit that doesn't exceed 240 V between any two conductors. Which electrician is correct? A. Electrician D is correct. B. Electrician A is correct. C. Electrician B is correct. D. Electrician C is correct.