The Query object is used to asks a question about the data stored in a database and displays the specific fields and records that answer the question.
In code form, the select command is used for queries.
Answer:
Is it a tool in the computer, pls make it clear
Answer:

Explanation:
<u>DC Circuit</u>
The DC circuit shown it the figure has a power source (battery), some resistors, switches and voltage and current meters. The switch S1 is open, so the right branch of the circuit is neglected. Assuming all meters are ideal (no resistive losses), we have a simple series circuit made of resistors R2 and R3.
We are required to compute the total power dissipated in the circuit, which corresponds to the total power delivered by the voltage source.
The power source of V= 6V is delivering a current in the series circuit equal to the current through R1 and R3. That current is the same as that read by M1 known to be I=0.04 A
The power delivered by the source is

