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സാധാരണ ബൾബിലെ ഫിലമെന്റുണ്ടാക്കാൻ ഉപയോഗിക്കുന്ന ലോഹം ഏതാണ് ?

Aടങ്സ്റ്റൺ

Bചെമ്പ്

Cമാംഗനീസ്

Dവെള്ളി

Answer:

A. ടങ്സ്റ്റൺ

Read Explanation:

  • Pure tungsten has some amazing properties including the highest melting point (3695 K), lowest vapor pressure, and greatest tensile strength out of all the metals.
  • Because of these properties it is the most commonly used material for light bulb filaments.

Related Questions:

A current-carrying straight conductor is placed in a magnetic field. The conductor experiences the maximum force when the angle between the direction of the current in it and the direction of the magnetic field is?
Two resistors A and B have resistances 5 chm and 10 ohm, respectively. If they are connected in series to a voltage source of 5 V. The ratio of power developed in resistor A to that of power developed in resistor B will be?
ഒരു ജനറേറ്ററിന്റെ കറങ്ങുന്ന ഭാഗത്തെ _____ എന്നു പറയുന്നു
50Hz ആവൃത്തിയുള്ള AC യിൽ വൈദ്യുതപ്രവാഹദിശ ഒരു സെക്കന്റിൽ എത്ര പ്രാവശ്യം വ്യത്യാസപ്പെടുന്നു?

Consider the following statements about magnetic field due to a current-carrying straight conductor: Which of the above statements is/are correct?

  1. (a) The direction of the south pole of a compass needle at a point gives the direction of the magnetic field at that point.
  2. (b) The direction of the magnetic field lines gets reversed if the direction of the current in the conductor is reversed.