Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): Electric appliance with metal body has three electrical connections. But an electrical bulb has two electrical connections.
Reason (R): Three pin connection reduces chances of electrical shocks.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): The same amount of current flows through the filament and line wire. But more heat is produced in filament.
Reason (R): Filament is made of material having high resistance and high melting point.
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): Kirchhoff ’s junction rule is applicable for any number of lines meeting at a point in an electrical circuit.
Reason (R): When there is a flow of steady current, then there is no accumulation of charge at the junction.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): In balanced condition, if the galvanometer and the voltage source is interchanged, the balanced condition remains same.
Reason (R): The balanced condition of Wheatstone bridge does not depend on the value of the resistances.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): A high resistance is connected in series with the galvanometer of the meter bridge.
Reason (R): As resistance increases, the current also increases.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): The balancing point of a meter bridge is obtained at L = 40 cm. When the area of cross-section of the wire of is doubled, the balancing point shifts to L = 60 cm.
Reason (R): Resistance of wire is directly proportional to its area of cross-section .
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion : A larger dry cell has higher emf.
Reason : The emf of a dry cell is proportional to its size.
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion : A current continues to flow in the superconducting coil even after the switch is off.
Reason : Superconducting coils show Meissner effect.
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion : Ohm’s law is applicable for all conducting elements.
Reason : Ohm’s law is a fundamental law.
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion: The possibility of an electric bulb fusing is higher at the time of switching ON and OFF
Reason: Inductive effects produce a surge at the time of switch ON and OFF