Short Answer
The answer explains how capacitors store energy through the relationship between charge, current, and voltage. It highlights the implications of voltage measurements on charge and current behavior, as well as the impact of relay positions on current flow and charge decay in capacitors.
Step 1: Understanding Capacitor Operation
Capacitors are electric devices that store energy when a voltage is applied. The relationship between the capacitor’s charge Q, current I, and voltage can be described using key formulas. When a positive I is applied, both Q and voltage increase, meaning energy is stored in the capacitor. This dynamic helps clarify why statements regarding charge decrease and current positivity are often false.
Step 2: Analyzing Voltage and Current Relationships
The relation between measured voltage in the capacitor and current is crucial for understanding its behavior. When voltage is measured from VOLTAGE IN 1 and is positive, it signifies that charge Q is also positive. Conversely, if VOLTAGE IN 2 is negative while I is positive, it contradicts standard behavior. We conclude that this means such assertions reflecting these conditions are typically false.
Step 3: Examining Relay Positions and Current Flow
The position of a relay, especially when in the “N.O.” (normally open) position, affects current flow significantly. In this state, no current can flow, leading to a rapid decay of charge in the capacitor. Additionally, the transient current flow is characterized by an exponential decrease to zero in the given formula. Hence, relating these dynamics to the statements provided can reveal discrepancies in their truthfulness.