Proton nutron theory

A bijective homomorphism is an

• Monomorphism

• Isomorphism

• Endomorphism

• Epimorphism

13.Set of all even numbers form a group under the law of

• ordinary multiplication

• ordinary addition

• ordinary addition and multiplication

• neither of the above

The total voltage in a circuit with voltage drops of 15V, 25V, and 20V is?

• 20V
• 60V
• 120V
• 180V

In a series circuit, there are multiple paths for current to flow.

• True

• False

Who described light as quanta in his theory of the Photoelectric Effect

• Ma. Planck

• Einstein

• Bohr

• De Broglie

This is the circuit symbol for ...

• an AC current source
• a DC current source
• an ammeter
• a voltmeter

This is the circuit symbol for ...

• an AC current source
• a DC current source
• an ammeter
• a voltmeter

• Closed switch
• Push switch
• Trap door
• AC Power supply

The sum of all of the voltage drops (VR1 + VR2 + VR2) is equal to the total applied voltage (VT) in a series circuit.

• True

• False

The magnetic indensity that persist in a ferromagnetic material, when the external magnetizing field reduced to zero , is known as ...........

• Coercivity

• Retentivity

• Susceptibility

• Permeability