eep January 28, 2025 EVSE Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% EVSE Day 5 Think about materials like rubber or glass. 1 / 10 Insulators allow the free flow of electrical current. a. True b. False Incorrect. Insulators do not conduct electricity; they prevent it from flowing. Correct! Insulators resist the flow of electrical current. Insulators are materials that resist or block the flow of electrical current. Use Ohm’s Law (V=IRV = IRV=IR). If RRR is constant and VVV increases, what happens to III? 2 / 10 If a circuit has constant resistance and you increase the voltage, what happens to the current? a. Current decreases b. None of the above c. Current stays the same d. Current increases Incorrect. According to Ohm's Law, the current increases when voltage increases with constant resistance. Correct! Current increases when voltage increases in a circuit with constant resistance. Ohm’s Law states I=V/RI = V/RI=V/R. With constant resistance, an increase in voltage results in a proportional increase in current. Safety practices aim to minimize the risk of electrical accidents and injuries. 3 / 10 Which of the following is NOT a common safety practice when working with electrical systems? a. Using insulated tools b. Lockout tagout procedures c. Wearing personal protective equipment (PPE) d. Working on live circuits whenever possible Incorrect. This is not a safe practice when dealing with electrical systems. Correct! Avoid working on live circuits whenever possible to ensure safety. Working on live circuits is extremely dangerous and should be avoided unless absolutely necessary and under strict precautions. The formula P=VIP = VIP=VI comes from Watts Law. 4 / 10 Watts Law helps to determine which relationship? a. Power, voltage, and current b. Resistance, capacitance, and power c. Voltage, resistance, and current d. Frequency, voltage, and current Incorrect. Watts Law focuses on power, voltage, and current. Correct! Watts Law uses P=VIP = VIP=VI to calculate power in a circuit. Watts Law defines power as the product of voltage and current. Voltage is sometimes referred to as "electric pressure" in a circuit. 5 / 10 What is voltage? a. None of the above b. The flow of charged particles like electrons c. The force that pushes current and causes flow in a circuit d. The number of electrons in a circuit Incorrect. Voltage is not the flow or the number of electrons; it is the force that drives current. Correct! Voltage is the driving force behind the flow of current in a circuit. Voltage is the electrical potential difference that drives current through a circuit. Electric current is measured in a unit that represents the flow of charge per second. 6 / 10 What is the basic unit of electric current? a. Volt b. Watt c. Ampere d. Joule Incorrect. Volts measure voltage, watts measure power, and joules measure energy—not current. Correct! The ampere is the standard unit for measuring electric current. The ampere (or amp) is the SI unit of electric current, which measures the flow of electric charge. Overloading a circuit involves connecting more devices than it can safely handle, regardless of the individual power draw. 7 / 10 You can safely overload a circuit by plugging in multiple devices as long as they are not drawing a lot of power. a. True b. False Incorrect. Overloading a circuit is dangerous, regardless of how much power each device uses. Correct! Overloading a circuit is unsafe and can lead to severe electrical hazards. Overloading can lead to overheating and fire hazards, even if devices don't draw much power individually. Parallel circuits are designed to provide multiple branches for current. 8 / 10 Parallel circuits have only one path for current to flow. a. True b. False Incorrect. Parallel circuits allow current to split into multiple paths. Correct! Parallel circuits have multiple paths for current flow. A parallel circuit divides current into multiple paths, unlike a series circuit. Ohm’s Law is represented by the formula V=IRV = IRV=IR. 9 / 10 What does Ohm's Law state? a. Power is equal to voltage multiplied by current b. Resistance remains constant under all conditions c. Voltage is directly proportional to resistance d. Current is directly proportional to voltage and inversely proportional to resistance Incorrect. Review the formula V=IRV = IRV=IR to understand the relationship between voltage, current, and resistance. Correct! Ohm’s Law defines the relationship among voltage, current, and resistance. Ohm’s Law explains that the current in a circuit is proportional to the voltage and inversely proportional to the resistance. This type of supply adjusts for connected devices. 10 / 10 Constant voltage power supplies maintain steady voltage under varying ________. a. Currents b. Loads c. Frequencies d. Resistances Incorrect. Constant voltage power supplies stabilize voltage regardless of the load variations. Correct! They maintain constant voltage under varying load conditions. Constant voltage power supplies adjust output to maintain a steady voltage across varying loads. Your score is LinkedIn Facebook Twitter 0% Restart quiz Exit Rate & Review Thank you for taking the time to leave us a review! Your feedback is greatly appreciated and helps us improve our services. Send feedback Pos.NameScoreDuration 1eep100 %1 minutes 20 seconds2Guest100 %2 minutes 19 seconds3eep100 %2 minutes 56 seconds4Guest90 %22 minutes 13 seconds5Guest80 %12 minutes 52 seconds Leave a Reply Cancel replyYour email address will not be published. Required fields are marked * Comment* Name* Email* Website Save my name, email, and website in this browser for the next time I comment. Post Comment