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Question: If the resistivity of a material is 2 x 10^-8 Ω·m and the wire has a length of 3 m and a c..
Question: If the cross-sectional area of a wire is doubled, how does its resistance change?Options: ..
Question: What is the effect of increasing the length of a conductor on its resistance?Options: Incr..
Question: A wire made of material A has a resistivity of 1.5 x 10^-8 Ω·m, while material B has a res..
Question: Which of the following materials has the highest resistivity?Options: CopperAluminumSilver..
Question: If the temperature of a conductor increases, what happens to its resistivity?Options: Incr..
Question: If the length of a wire is doubled while keeping the cross-sectional area constant, how do..
Question: What is the unit of resistivity?Options: OhmOhm-meterSiemensCoulombCorrect Answer: Ohm-met..
Question: If the resistivity of a material is halved, what will happen to the resistance of a wire o..
Question: What is the effect of increasing the cross-sectional area of a conductor on its resistance..
Question: Which material has the highest resistivity?Options: CopperAluminumIronRubberCorrect Answer..
Question: A copper wire has a resistivity of 1.68 x 10^-8 Ω·m. What is the resistance of a 100 m lon..
Question: If the temperature of a metallic conductor increases, what happens to its resistivity?Opti..
Question: Which of the following factors does NOT affect the resistivity of a material?Options: Temp..
Question: What is the resistivity of a material if a wire of length 2 m and cross-sectional area 1 m..
Question: What happens to the reading of a potentiometer if the wire is heated and its resistance in..
Question: In a potentiometer setup, if the balancing length is found to be 50 cm for a 12V battery, ..
Question: In a potentiometer experiment, if the wire is made of a material with higher resistivity, ..
Question: If the internal resistance of a cell is negligible, how does it affect the accuracy of a p..
Question: Which of the following statements is true regarding a potentiometer?Options: It can measur..
Question: A potentiometer is used to compare two EMFs. If the known EMF is 6V and the length of the ..
Question: If a potentiometer wire has a potential difference of 12 V and a length of 6 m, what is th..
Question: In a potentiometer experiment, if the known voltage is increased, what effect does it have..
Question: What happens to the reading of a potentiometer if the resistance of the wire increases?Opt..
Question: If a potentiometer is used to measure the EMF of a cell and the balance point is found at ..
Question: When using a potentiometer, why is it important to keep the circuit closed while taking me..
Question: In a potentiometer setup, if the wire is made of a material with higher resistivity, what ..
Question: What is the role of the jockey in a potentiometer?Options: To measure currentTo connect th..
Question: What is the role of the galvanometer in a potentiometer circuit?Options: To measure curren..
Question: In a potentiometer setup, if the wire is made of a material with higher resistivity, what ..
