1) A capacitor, connected to a 12 V battery, holds 36 μC of charge on each plate. What is the capacitance of the capacitor? a) C = 6 F b) C = 3 x 10-3 c) C = 3 x 10-6 d) C = 6 x 10-6  2) What is the primary function of a capacitor in an electric circuit? a) to increase voltage b) to store electric charge c) to conduct electricity d) to reduce current 3) Which unit is used to measure capacitance? a) Coloumb b) Volt c) Farad d) Ampere 4) What is the role of a dielectric in a capacitor? a) It decreases the capacitance b) It increases the capacitance c) It conducts electricity d) It reduces resistance 5) Which material is commonly used as a dielectric? a) Rubber b) Silver c) Copper d) Gold 6) What is the relationship between capacitance C , charge Q , and voltage V ? a) C = Q x V b) C = Q / V c) C = V / Q d) C = Q + V 7) What happens to the stored charge if the voltage across a capacitor is doubled? a) Doubles b) Halves c) Remains the same d) Becomes zero 8) The potential energy stored in a charged capacitor depends on which of the following? a) Charge and resistance b) Current an resistance c) Charge and potential difference  d) Voltage and current  9) Which of the following best describes a dielectric constant? a) It measures the resistance of a dielectric b) It measures the conductivity of a dielectric c) It is a measure of a material's ability to insulate d) It is a measure of a material's ability to increase capacitance 10) When the plate area of a capacitor increases ________ a) the capacitance decreases b) the capacitance increases c) the capacitance is unaffected d) the voltage increases

Capacitance

על ידי
הדפסה
הטבעה

לוח תוצאות מובילות

סגנון חזותי

אפשרויות

החלף תבנית

האם לשחזר את הנתונים שנשמרו באופן אוטומטי: ?