NO! The circuit is being overloaded. Danger of fire will result from just changing the size of the fuse or breaker.
A 30 amp breaker may be used with #10 wiring. #10 is rated for 30 amps. I would be hesitant to do this if the tripping problem is something new though.
Yes, the breaker can be changed. The breaker is sized to protect the wire that is connected to it. A #10 conductor is rated at 30 amps. Any load draws what it needs to operate. It is oblivious that if the 20 amp circuit breaker is tripping then the breaker is too small for the connected load. That is probably why the #10 conductor was used in the first place. It happens quite often that if the correct breaker size is not available then a substitute is put in its place. In this case a 20 was used instead of the correct 30 amp breaker.
the least count of screw gauge is 0.01mm OR 0.001cms..
Yes you can as long as it is feed off of a 20 amp circuit in at least #12 gauge wire.
(1) Re-wire the fridge circuit and/or the range circuit with larger gauge wire. (2) The range should be on its own circuit already (if not, put it on its own circuit like NEC mandates). You could try running a separate circuit just for the fridge too. You only _need_ to use 14 gauge wire, but use at least 12 gauge wire to help reduce voltage drop. (3) If voltage drop is a problem elsewhere in your house, it might be time to look at a service upgrade.
0.03mm is the least count for feeler gauge
Certainly. Providing that the circuit is capable of safely carrying 20A. But the circuit was most likely put on a 15A fuse for a reason. ie. the circuit can't handle more than 15A. As a general rule, always replace a fuse with another of the same rating. You need to ensure that all wire in the circuit is at least 12 gauge. This is usually not the case in lighting circuits where the wire gauge is typically 14 gauge. Also all switches and outlets on the circuit should be rated 20 A which is non-standard. If you are replacing the 15 with a 20 because the circuit keeps tripping, that is probably a BAD IDEA.
A circuit needs at least three electrical contacs.
Least count of micrometer screw gauge is found by dividing the pitch of screw gauge by total number of lines on the circular scale.
0.01mm
.01
Any circuit containing at least one series subcircuit and at least one parallel subcircuit.
Any circuit containing at least one series subcircuit and at least one parallel subcircuit.
are you dum?a circuit with a source of energy and at least one conductor is blah.