In which of the following graphs below are both runners moving at the same speed?
2 answers:
Explanation:
In this case, we need to identify the graph in which both the runners are moving at the same speed. All the graphs shows distance time graphs.
The attached graph shows that the both runners are moving with same speed. Both the objects have same slope.
The slope of the graph is given by :
Also, both lines are parallel to each other and two parallel lines have same slope. So, in figure (d), both runners are moving at the same speed.
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Answer:
The magnitude of the magnetic field is .
Explanation:
Given that,
Charge,
Speed of the charged particle,
The angle between the velocity of the charge and the field is 56°.
The magnitude of force,
We need to find the magnitude of the magnetic field. When a charged particle moves in the magnetic field, the magnetic force is experienced by it. The force is given by :
B is the magnetic field.
So, the magnitude of the magnetic field is . Hence, this is the required solution.
In a circuit having 2 lamps are connected in parallel to a battery
then the two lamps will be having the same potential as the battery
i.e
As per Ohm's law,
and
In other words, each lamp's current is inversely related to its individual resistance. We only know the current in one of the bulbs in this specific instance. We would therefore need further information in order to calculate the current in the other light. Therefore, there isn't enough data to make a statement.
Under the assumption that all physical parameters, including temperature, remain constant, Ohm's law asserts that "the voltage across a conductor is directly proportional to the current flowing through it".
Learn more about Ohm's law here
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