Dielectric and Superconductivity

The total polarization value decreases with increase in __________________

• Intensity
• frequency
• temperature
• time

The dielectric loss can occur in _________________ voltage

• Direct
• alternating
• both a and b
• lower

In _________________ region, the power loss is less

• Visible
• optical
• Infrared
• ultraviolet

The electric field strength at which the dielectric breakdown occurs is known as _________________

• dielectric voltage
• dielectric strength
• dielectric constant
• avalanche breakdown

When mobility of ions are increases, insulation resistance decreases and hence dielectrics become __________________

• conductors
• Insulators
• Super conductor
• semiconductors

In some materials, the electrical resistance becomes zero, when they are cooled to _________________

• High temperature
• low temperature
• very high temperature
• very low temperature

Superconductivity was observed by ______________________

• Bardeen
• Ginzburg landau
• H Kamerclingh onnes
• Schrieffer

The temperature at which a normal conductor loses its resistivity and becomes a superconductors in known as ________________

• Critical temperature
• transition temperature
• H Kamerclingh onnes
• constant temperature

If the transition temperature is low , then the superconductors are known as ____________________superconductors

• High temperature
• low temperature
• very high temperature
• very low temperature

If the transition temperature is high, then the superconductors are known as ____________________ superconductors

• High temperature
• low temperature
• very high temperature
• very low temperature